New York Herald from New York, New York • 81

Woman Doctor Blazes New Trail to Immunity From Disease Discovery by Vera Danchakoff of Columbia Upsets Old Hundreds of Lxperirrients Lead to Con elusion That the lyiesenchymal Cells Rather Than the Small Lymphocytes Destroy Germs Theory gpneernmg Factors of Mankind's NturqJ. Defense Agjnst Ganeer Her Findings Create Sensation Among Men of Science 9 f- By M. K. WISEHART. A SCIENTIFIC discovery of far reaching i'nporfapcc, ono that t-pntters earlier theories con-jjenniiB tho basis pf man's immuplty frpm disease, has been annqunced by Dr.

Vera Danchakoff, a Russian biologist and scientist, who holds a chair of anatomy at Columbia University, in the College of physicians and Surgeons. Dr. DanchalcofTs discovery, lyhlch apparently marks an epoch In the study ot tho numerous phases of thd unsolved irntnqplty problem, wo? made known by her recently when she read an addrpss on "Immunity and the Power of Digestion" before meeting of tho New Vprkvadierqy of pierces. After many thousands of experiments on rats, mice chicks' I)r. DanchakoTf has reached conpjusions which upset tho old theory that immunity against any tumor comes about through tho activity of the hmall lymphocytes.

Heretofore theory has been accented that "immunity against tumor Is duo to tho activity of the small lymphocytes against dlseaso germs'' But Dr. 1)anchakoff boldly calls, tljo email lymphapyto tho "fetish of Immunity." Her own work, Tybich Is rapidly winning credit and acceptance frprn scientists, including those who formerly held by tftc lymphocyte theory, shows that the digestive property of a certain tissue which exists cyerywherg tprpugbout the body (the mesenchymal tissue) Is the factor that arrests tho development of a rapidly growing and malignant form, of cancer, and that tho inhibition pf the cancer dqyplopment Is accomplished through, the. poorer of certain cells to surrqpnd cancer cells, to kill them, and to cqpvcrt them into" dead protein and to digest this protein. IJUcovpry mnprfnnt Tho significance of this discovery. H'hlch to tho layman may seem un-dramatic, is of vast import to all scientists who aro studying" the life processes in relation to" tho vital' problem of mankind's itnmunlty from disease.

Speaking conservatively, it may-ho said that Dr. DanchakofTs dlscov-erj' has created nothing less than a sensation in the scientific worjd, at least In that part of t)e scientific world engaged In studying the life processes with the lppp of discovering tho fundamental factors that operato in giving mankind Immunity from disease The problems to whjeh Dr. DanchakofTs discovery Eventually must turn tho minds, pf scientific men aro ot vast Import to1 the human race. By develop ng and broadening the scope of Dr. DanchakofTs experiments and findings such questipns as these tvcntuall'v may be answered: What diseases In man and animals can be prevented by stimulating the digestive power pf cells of tho various tissues? In man is tho digest've power ot certain cells; tho fundamental or the.

subordinate factor in Inhibiting, disease? Can cells containing digest've ferments be directed and controlled In such a way that they can bo induced to seek out ana destroy foreign tissues and tho microorganisms" that cause many and various diseases? Before the Academy of Sclprices Dr. Danchakoff demonstrated her remarkable exper'ment with photographs and drawings thrown on a large These photographs and drawings showed, by presenting various staged of her experiments, tho actual process by which the mesenchymal tissue Inhibits the development of tumor tissue by digesting it. It has been known for some time that various t'ssues of the body have the power of digesting protein, as, for instance, in the casq of catgut left in the issues bysur-Eeons after operating. Tho catgut is; disposed by by the digestive property Nut Trees Confofuuetl from Preceding Page. on land on which no other crop wil grow and which is even worthless for grazing.

Tho plnon flourishes in thq bleak and barren peaks of the Rpckies. "Ten nut trees planted for each in--habitant will Insure tho country against any possibility of food shortage. A row of nut treea on each aide of our 5,000,000 miles of country roads Mil provldo for a population of With a vanishing animal cusiry, nut culture offera tho on.y practical solution of tpe question it food supply," Dr. Harvey W. Wiley, discussing the food value of nuts, says: "Tho nut, becomes an ideal food where the highest purpose of the food Is to furnish heat and It Is advisable as a food product for a peri-son engaged in hard labor or to low temperatures.

Physiology teaches us that tho average man weighing 150 pounds engaged In ordinary exercise incident to a fairly active Ufo needs about 3,000 calorics af food a day. That Is" a quantity of luat derived from food which would raise 1.0Q0 grams of water (2.3 pqunds) through a temperature of 3 degrees (5.4 Thero aro a largo number of nuts which contain more than 3,000 calories per pound by weight. Somj oi them contain as much as 3,500 calorie, and only a few fall below "It therefore appears that a pound ef tho average nuts would furnish tuftlclent food for a man of 150 pounds, jngaged in ordinary active pursultn, for twenty-four hours. It is thus soon wth what a small amount of the human engine can operate. "The proper food value of nus 1 cured they are mxed with the ther articles of and tb.cy thus "ome to certain extent mow palatable and nutritious.

The true philosophy therefore is to Inculcate a more "tensive use of nuts but not touch the doctrine that they can be employe food" of other Wndj ot TrCu Red nut ou'turlst of thq united States' Department ot Agricul of tho surrpundlng tissues. Dr. Danchakqff jlag pr0ved conclusively, hpwqypr, that mesenchymal tissue which Is found everywhere throughout thp body "and especially thq rrjeBpnphyrrtal tUsues, 0s, it (s fqund HlP fPlegn. has tftQ power to djgos't llyjiii; cqIJs and pven tumor xes, YticJj havp 'a very high rata of grqwth. A)rcnly Accepted.

The findings, and conclusions of Dr. Danchakoff are already finding acceptance by workers at tho Rockefeller Institute of Medical Research. This Is especially significant, aa tho theory that the small lymphocytes constituted man's defence against dlseaso was advanced by Drs. Murphy and Morton of tho Rockefeller Institute in 1015. Recent renewed study of tho preparations mado by Dr.

Murphy shico tho announcement pf Dr. Daiiphftkotr's discovery is said to have furnished ample ovldencc, in, support of Dr. Dancha- Kon'a conclusions. Briefly put, Dr. Dancliakoft's discovery is that the adult mesenchymal cell (from tho spleen) has a digestive power over living tumor cells, and ovor an especially malignant kind of tumor colls which multiply very rap Idly.

This discovery can be visualized by" a "Very crude Illustration, tho Illus tration representing what Dr. Dan chakoff has seen by tho aid of her microscope taking place from day to day when tumor mesenchymal cells havo been brdugrlt together by a graft on the pmbyro of a chick. Imagine a group of black marbles that reproduce themselves and multiply very rjpldy. These "represent a 'PSl'eW tumor. And, raagnp tie u.uujt i(i)trues ti(rruuniieq py a grqup of spattered whte marbles, which, represent mesenchymal cells.

Imagine tjtat the white niarbes haye the pqwpr or encircung mo niacic marbles. in the white mqrblps frqagjnp fh'at therp a proppry (digestive)' which enables, them to break dqwn pf the plaplf marbles. Thus tho black marbles woujd be, as actually happens in, tho ca.se' pf tho tumor cells, Ingested', or surrounded and "stranglpd," and flnajy absorbed. Microscope Shown Cell. Dp, panphakpfTs microscope and photographs, pf her microscopical sHdea show the mesenchymal cells thus surrounding and actually destroying tumor pes.

The-microscope asp shows that nRne of tha small lymphocytes nrp present to act upon thq tuinor pelja so that tho must bontirely dpo to the diges-tlya power of the mesenchymal cells. Dr. DanchjJkoff's prpcedure in her xperlments can thus ho described: "Foreign tumor tissue has been brought together wth mesenchymal adult tissue so that the action between these two ingredients In a neutral tissue can be studied. The neutral tissue cnosen was tho embryonic tissue of the chick. -It is possible to graft all kinds of tissue on an embryo and it was decided to graft the tissues with, which experiments were to be mado oa the chick embryo instead of qpltivat; ing them In test tubes, for tho reason that In the embryo oxidation conditions would be more nearly normal and satisfactory.

"Thq mesenchymal tissue is a young connective tissue that exists Jn all the organs of the body. It is especially abundant In the spleen. That is why It was decided to study the interaction between tumor tissue and mesenchymal splenic tlssuo in this artificial medium, the chick embryo "Experiments with the chick embryo and wiyi many supplementary ex pcrlmpnts by way of control havi been continued over a period of three or four years. Sixty eggs have been incubated at a time. At certain periods in tho development of tho embryonic chick openings havp been and the Food Problem ture, advocates the adoption of anut tree planting programme Including the planting of sulllclont trees along the highways so that it will bo worth while to care for them and save them from blight and dlseaso.

''In the planting ot trees for most h0 Bays, "It is now possible to exercise practically the same degree ot choice with regard to special fitness as Is employed in the selection of men for positions or tools for a piece of work. Tho fruit grower In every part of the country has hjs special spepies and pomological varieties froin, iyhlch tq choose. The foresters and landscape gardener havo their species and bp-tanjcal varieties or improved strain to pick from. "Among tho, Importapt purposes for which trees are planted the production of natiyp nuts is Elngulariy behind. The leading species of native nut bearing trees Include the hickories, the walnuts, U)c chestnuts, thp pines and beech.

Of these, pnp of the hickories, the pecan, is the only species which has so far been developed by cultivation as to becomo of importance for tho production of an orchard product "Foresters are advocat'ruj te planting of trees in waste places (n tpe cpuntry. especially fayni buildings. Therp arq perhaps no conspicuous; wasfe places with greater aggregate area than thq strips along tle public highway. Ip certain, foreign cquntrles. theso strips aro planted to fruU.trccg and the right of harvest awarded to the highost bidder.

The revenue sq obtained gops, jqpg wy tqwarfl keeping tjia highways good condition- "It Is a proposal rpaHe rp.oro comfortable and attractive the present cystem of roadways, and at thq same time to holp eyelop new varieties' of nut trees for orchard planting. Unless such ney varieties arq soon to become available a large part of the country will presently flqd itself dependent upon outside sources fop Its pr'nclpql su.bstltqte for ineai jts inai.n gu.pply pf-YegotaWe fa.ta." Concemliiff the devtlonrnent of nut trees t6f shade, Francis A. Bartlett, made in tio shell of the eggs to permit tho Introduction of tho tumor and mesenchymal tissue. These openings havp been closed wit)? paralllne, and tlw growth of these tlssucsln the prpbryq have beer) obsoryed pq the seeqn'd, third, fourth, fifth days apd subsequently- The result shows that fhe growth known as the Ehrlch tumor, a tumor that proliferates yery rapidly, Is actively destroyed when grafted along with mesenchymal tissue. And the result shows conclusively that at least in some caeca it, is the digestive activity of the mesenchymal coll that Inhibits trie grqwth of tjio tumqr.

Under tho mjeroseppe wp see very clearly tho process of disappearance ot tumor cells' when surrqupded by rnesen-chypial cells Just oa we see protcfn disappear In capillary tubes by tho pctlon of ferments. Ucntrnys Tumor "Two linos of activity are observed in this mesenchyme. It splits off numerous mobile ce)ls of hemoblastlc, nature wpicu unrerentiaio into gran-Uur leucocytes, which iiayp heretofore bppp mistaken for small lymphocytes. Thp mesenchymal cells havo the power of isolating and surrounding tumor cells, of enclosing them in vacuoles and of digesting them within these vacuoles. Tumor cell after tumor cell hi digested in this wuy.

In the case of the Ebrllch tumor tho rate of digestion of the tumor cells by tho mesenchyme higher than tho rate pf thq multiplication of" tliese cells. Tius oven after good start in development the grafted tumor disappears. "The short lived fame of tho small lymphocytes and the claim mado that they formed our defense against dlseaso Is. still in our. memory.

But the microscope shows that most cases the small lymphocytes, though present in the grafted spleen, disappear quickly In these experiments upon chick emhri'P- Thq error that made the small lymphocyte tho fetish pf immunity must Inevitably have come abqut through disregarding tho micro- TUMOR CELLS THAT HAVE BEEN SURROUNDED and "STRANGLED" BY MESENCHYMAL CELLS THEY ARE BEING ABSORBED by -the MESENCHYMAL CELLS. scope or through a failure to study what tho mlcroscopo had to tell. Microscopical examination shows that when in a graft of tumor and spleen tho tumor growth has been arrested, the lvmphocytea are not present at all. Not the small lynipbncytn but tho dl- Nut Growers Association, says: "Were we to limit our shade trees to those trees which alone produce edible nuts we would then haye greater assortment qf trees than ope vould readily Imagine, and not only wouiq tho varieties bo numeroua but they Tvquld. embrace many of our most noble apd beautiful trees.

"Cpnslder the varieties from which wo might draw. Of tho oaks there aro many. While tho nuts or acorns are seldom eaten by man, yot they have often composed his diet when other foods have failed. Our native heech produces, the small triangular tuts, which have been sought by the beys' and grlg of centuries and are as; popular as a hundred years ago. The beech grows to an immense size and llyes sometimes for centuries.

Our native black walnut Is a magnificent tree which can compare favorably with the finest oak In size, in uliape, piotpresfiucness and abovo all, Us huge nuts, which arc both welcome and delicious. "The trco which I believe to be the most promising for this locality is the pecan. It has been demonstrated that we can grow the pecan on our native hickories, and from what I havo seen of tho wonderful growth of the llrst year bud I am sure we will bo ablo to produco qs fine pecans (near York) as ip qny section of tho country, and further than that, we luvo an unlimited number of nativo hickories on which we can graft this finest of nuts. The pecan Is hardy In this locality and farther north. "Were wo to develop a park and limit tho plaqtlpgs (o nut trees aona how attractive such a park might 'be! Imagine what return from such a planting might mean tq tho publlo or owners! In fifty years from this tlmo, and In speaking ot nut trees lopklng forward fifty years is a comparatively short time, our roadside trees could he replaced by nut bearing trees, which nrp as attractive as any shade tree.

I haye no doubt that In such city, say, ag Stamford, rf. were tho roadsides, planted with hut trees ajd thpao repejyed rPs.on apis care, tfip returns frprrj these Trees would pay tne entire city ana town. likWiPmmi 'i gestlve activity of the adult mesenchyme, heretoforo considered merely as a supporting tissue, proves to be tho direct factor In the disappearance of the tumor cells in a mixed graft of tumor and spleen. Suit Light uit rroMpm. "The fact that at least in some cases the digestive activity of the mesenchymal adult cell becomes the determining factor in inhibiting the growth of tumors throws a pew light oh the problem of ImmunHy, since, the power of resistance against the proliferation of foreign tlssup, though possibly manifested in different ways, pat) certainly not bo of a fundamentally different nature." Dr.

DanchakofTs discovery raises tho question whether it pj a lack ot power or iacK or opportunity wpicn prevents the cells ot our tissues frpm manifesting a digestive capacity under abnormal conditions. Tho resistance ot the organism to tho continued growth of any heterogeneous elements, whether porinal tissues, tumqr cells or micro-organisms, Is generally kpown under tho term of Immunity. In spite of the most earnest efforts among scientists to got light on the subject no definitive knowledge has yqt been acquired concerning tho nature of this property. With tw discovery of tho Inhibiting power of the mesenchymal cejj by virtue of its inherent dlgostlve property, a navy epoch piay ho opening (ne siuuy of immunity, it becomes necessary now to experiment upon animals both thoso low In tha scale and as high as mammals to determine whether the digestive powtr ot various tissues i3 tho factor that generally and fundamentally acts in Inhibiting disease It Is not improbable that Dr. DanchakofTs discovery will becomo the groundwork for the future solution of the Immunity problem and tho combat of dlseaso.

In any case Ber'in's Heating Plan TUB city of Berlin adopted in July a new plan for supplying sorqe public buildings with heat, and warm wator. Exhaust steam from the Berlin electricity works wil be used, In addition to coke heated boilers. Pfpes are to bo laid in concrete conduits along the streets, the pipe sections to be welded together. A number of tenement houses will bq included in the distribution area, whjch la set a. ahoqt two, miles at first, It wa th.o original intention" tfl rn rne.ncp the suntfr ftp cpmlPff vlnter.

but it is doubtful if the work will as a result pf her discovery a nw Approach must be mado tq tho study of problems affecting mankind's Immunity frorq disease. It is true of course that mqsh work rpmajna to bo done before any application of Dr. DanchakofTs discovery can be mado to the problem of Immunity In general. It Is too much to expect that Dr. Danchakoff dr any one Investigator will be able tq verify all the Implications that ariso from the simple but apparency fundamental discovery that the rqcsenchynial How Violinists Educate Themselves A' UER, that veteran teacher of the violin, once told a reporter for The Sun that he made noto of the pupils under him who showed a desire to extend tho branches of their education beyond the realm of thq violin and even be-ypnd musc and It was' his experience that thoso who showed ambjtion for nil around Iptellectual development In thp end won greatest success with the bow.

Asked to givp examples tho famous instructor, who Is a diplomat ist also, declined to commit himself to names It Is truism in art as in all intellectual and spiritual things that the realm of Its professor is not limited to his special field that a painter prn musician helped rather than in Jured by correlating any study, how ever remote it may appear to be from his brush or instrument. Yet there haye beep great examples of artists and particularly of violinists who won to tho height of their art while remaining densely ignorant of everything outside of it. These men, however, were exceptions. Music is a Jealous goddess and never mere so than in the case of tho violin. She demands from tho man who would play this most human of Instruments unwearying patience, unflagging zeal, Immense devotion and a sacrifice of tho many minor things that mako Ufa interesting and livable to most men.

Is she llkewlso impatient of the time one of her devotees may take from her to give to his general education? Dlallka to Admit Ianiirniu-r. Tho answer to fhs question varies. Yiollnlsts, lke other nien, are not apt to adm.lt a lack of education, and the facts about them In tiis regard generally haye fa, be drawn front other sourcps ancj Indirectly. Occasionally a violin player will say Impatiently: "What tlpie'liRye I tp study qpythlpg but my music? How can I even read wqen I havo to practise every waking hour?" An lndlfferqnce to knowledge is apt to be behind this Impatient feeling Jtnd this indifference is fostered by tho pcopio surrounqing a master of the violin wiio, they thiqk, need not know anything but his music. They forget that his music is certain to be brpadened by what lie knows of other arts and sciences.

They keep tho violin artist satisfied with his limitations and they are had; advisers. Two celebrated violinists now in New York aro representatives ot this Varying attitude towards personal improvement Ono of them formerly was a pupil otvAuer, and so successful has ha been that even that teach- Jr's (treat fame, was, wlqopecl py his pupil. This player reads. notBlrjg does not wish to. Except to improve) cell has tho power to digest the adult living cell of another tissue.

Dr. Danchakoff, whlu occupying a chair of anatomy at Columbia University, is also connected with tho Crocker Fund Laboratories. She Is a Russian and has been In America only since one year after tho beginning of tho great war. Slnco coming here her work has been chiefly ut Columbia. In tho course of preparing herself for scientific research she took many degrees.

She was first graduated in peaking people and his acquaintance with current evpntsj by the newspapers, his education ceased as soon as he arrived in this country. He has no tasto for the poetry of any nat'on and great names of any country nre merely names to him. In bis social experience tills abysmal ignorance is instantly percflvnble, as It could not be hidden, and the artist makes no effort to hide it. Ho will shake Jils read at the direct query put to him about a book and its author with the remark: "Never heard of him," or "I know nothing about tho book be-ause I havo no opportunity to read." This man effects wonderful things with his violin; In that language ho is past master. He thrills.

awes, carries his audlcnco heaven his music. Ho knows, or appears ,0 know, al that the- composer seeks to tell. But does ho really givo you all that tho composer who lias read, yvho has studied, tried to give In his i music? This violinist feels theso things, there can no doubt of that, but if ho knew firm also perhaps he would mako yoa feel them tho moro deeply. Tho point Is that the Instrumentalist so Intuitive suffers in himself no lack from his own lack of knowledge. Why shquld lie take from tho study hs Instrument demands the time for edu cating mmseiif Krplnlcr la Another Sort.

Fritz Kreislor is another sort. A master vlolini-it. ho 1 a cultivated man of the world and a student of all literatures. The instinctive appreciation of his composer's cplture finds an agroe-ablo background In his own. He knows his own language and its an cient and modern literature; he is a master of French nnd reads her Dhll-(isophers, poets and playwrights; he is Interested in the thqqght and poetry of tho Orient- -AH knqw'edse ho would like to feel was Us rea ana ms reading is catliollc'for that avowed purpose.

It would scarcely ho possiblo for a virtuoso of his rank to havo played all over tho world, where ho has met fhe most cultivated people to content mm-spit with sqch knowledge that comes to him by intuit on npu no naa nui been thus contented, What tne past can teach mind open to Its lessons he has learned and what comparative literatures can bring to such a mind he has absorbed. To-day, as yesterday and last year and the years beforo. ho Is a studont. How much nis accomplishment in music has been aided by this study nobody can measuro uui himself and perhaps even he can not fully measuro its influence. However, he earnest in saying tnat notmng ho has learned in mathematics and philosophy, two branches of human knowledge commonly supposed to he removpu from the dlvipe qrt.

has laucit jo oroauen nis lecupjf aim ssope the faculty of natural sciences In Pct-rograd. Then she won her mooicai io (jreo at Lausanne. Her Rutslan medical degree she got at tho University of Kharkov. Sho was tho first woman to got the degree of, Doctor of iledlcal Sciences from tho St. Petersburg Academy of Medlclno.

Later sho was chosen by tho Moscow University as tho first w6man professor in histology and embryology. Sho was acting professor In the medical university for women in Moscow. For such a discovery as Dr. Dnpcha-Uoff has mado infinite patience is required. Through the patience and exactness of her work her findings havo found almost immedlato acceptance in the scientific world.

The layman will hardly appreciate the siguiflr canco of tho discovery unless ho realizes that the methods and tendency of Investigation of tho Immunity problem aro likely Ui bo entirely altered as a result. It would be ungallant to suggest that It is especially remarkable that it should havo fallen a woman to make the discovery, but it is nevertheless of great Interest -when taken Into account with tho fact that scientific men the world over have Jong been" engaged in tho very lipid of endeavor which Dr. Danchakoff has made her own. Iiitcreatinir Laboratory. Wholo cabinets of microscopic slides testify to t)0 patience, assiduity and Imagination with which sho has had to work.

Tho reader can imaglno Dr. Danchakoff In her laboratory at tho College of Physlclaps and Surgeons, a blond huired woman, with brown oyes, In the simplest of black costumes, a puro Slaylc Russia)). Cabinets pt data, cabinets of microscopic slides, microscopes, Jars of embryos in littlo sack Immerse4 in various liquids sqch Is tho background of her work and achievement, and ono sees her move about in this laboratory very carpest uni very beautiful in her earnestness, especially as sho liolds up a cautipnlng hand when ono approaches a certain mlcroscopo. Tho mlcroscopo is vpry powerful, nqd en larges an infinitesimal cell 1,200 times or more, malting it appear as big as a dime. Tho microscope Is an "qld frcnd," and whore, if it wero broken, would oho replace such an old friend these days? Ono might seo in Dr.

Danchakoff fhe exemplar of the new woman. Per- haps In days to como tho new man and tho new woman of whom literature has had so much to say will be of the scientific typecalm, speculative but plways silent on their speculations until tlmo has been taken to Verify, Indulging in speculations only of a kind which, if proved, can be ot benefit to mankind. With tho older form of scepticism men and women of Dr. DanchakofTs typo have nothing to do. The relatively small circumference of the mlcroscopo's field of vision is substituting now faith for the pld ones discarded a faith in the destiny of mankind.

Dr. Dancljakoff and her work make one think inevllably of those women In Turgenlev's novels sho Is, in fact, a distant couuln of Turgenlev of those vvomcn who were seen by Turgenlev through tho mysticism and doubt and MAX ROSEN VIOLINIST 1 When Max Rosen, one. of tho latest of tho Auer pupils to summon New York, his native city, to the sound of his bow, told Tub Sun on the day following his introductory concert that ho was anxious to cultlvato himself along all lines as well us music his statement seemed to promise that even wider and higher fields of music than thoso lie had already entered would open to him. This boy's eager gazo out of his wldo open eyes awoke an involuniary sympathy. "There is so much to learn," said he, "that at first I felt, frightened, but as I kept on studying and learning a little this feeling of impotency to acquire moro than a smattering of general knowledge left me.

Now I'm glad that I have so many books to read. I would like to know everything everything, and althuugh 1 realize that this is Impossible, I am doing a little bit each day. "When I was studying with Auer the day was too short for nil tho practice I would have liked to put In, and besides wo had our play or sport times. Then I had very- llltlo tlmo to study bonks, hut then I knew aa well I as I do now that overy good took 1 1 could read vould help my mulc. I asked Prof.

Auer If this was not true and ho said it assuredly had proved so, I haye a thirst for reading and It grows deeper Indulgence. Ono thins I havo found out for' mVs'fllf! i JUL la not to, reatt.i 6oals'Uiit dm' not speculative morbidity of 'the nineteenth century as women of action. In that tlfno when Turgenlev saw the Russian man as a weak willed being ho saw tho Russian woman as one who could act. Given other times than theirs, Ills Natachas, Lizas and might have been women pt science. Obstnclea' Overcome, Tremendous obstacles' have been overcome by Dr.

Danchakoff in pursuing her scientific career. Wtyon sho was a girl her family opposed her going to tho university. She was told that she might go to the conservatory to. study music, that she might study to develop her talents in drawing japd painting, talents which sho is. nort using in demonstrating with colored drawings the results of her sclontlflo research.

Thus refused an opportunity tti follow her chosen career, Dr. Danchakoff left her homo. Against overy obstacle which wan placed In tho way of her attaining the drgrces and equipment preparatory for her scientific work, sho opposed herself single-handed and triumphed. Ultimately sho married, but lost )ier husband after a year and a half, After tho death of her husband Dr. DanchakofT pursued her labors, achtjy-ipg diverse attainments In the languages and in blolpgy.

She has travelled widely throughout tho Continent I and elepwhere. Somo of her time has been spent in India. Part of her time during tho last years just before Fhe camo to America, sho' spent in tho moro Immediately practical fields of medical research, but becauso sho preferred to engage In tho "holy rosearch" and connected with the life processes, sho camo to America a year, after the- boglrinlng of the great war. For the' past fifteen years she has spent her tlmo chiefly In studying the origin, thq development and thq differentiation of the mesenchyme pqd blood. Left Daughter In llusnin.

It was chanco or luck, with a combination of other crcumstanccs, that caused Dr. Danchakoff to come to America in 191C. Sho left her daughter in Russia. Later tho daughter, too, camo to America and is now student at Barnard. Dr.

Danchakoff would readily admit that the' element of chanco or luck plays its part in the life of the scientist as well as In tho fe of UlQ pr03pector for the precious motals. "Thoso who engage In this holy research concerning tho life and work-without a desire to squeezo an immediate practical result from such studiesand that Is tho way in which they must be studied for a long time to como must shrink from publicity. It Is not welcome -for scientific researph cannot prosper the linie-llght. A discovery? It may bo luck, but it comes only after hard work, for only after years ot work is ono prepared to draw the Infercnco when luck throws an observation In one's way," Such would bo the dictum of Jlmo. Danchakoff.

After fifteen years of prolonged assiduity, one can say that sho is Just ready tu begin. It would bo too much to ask her what sho is going to do now. A LITERARY MOMENT hold me, no matter by whom or what it has been recommended. 1 do not Judge it but put It aside. Haying that I nm perhaps not ready for It yet For a.

year after coming home I read only history; now my reading Is largely tho old English pqets. How often tlic poets who lived in 'Elizabeth's day and after her" death said beautiful and true things as if a violin were slnglnp them! Yes, you may say for me that every good book that I read with understanding helps me to play tho violin better." Jascha Hclfotz, who was a pupil pf Auer In Dresden simultaneously with Rosen, but who had opened hh rarcor when tho mauler took his school to Copenhagen, is a different creature on the stago nnd off. As he plays htt-gives tho Impression of a nature caslly-to to wrought upon by any sort of emotion; in private Ufa ha Is poltv'i to calm and expresses nothing to much as a nature restrained from Indulging in emotions. Questions relating to his education do not call out thu unro-servert nnswers that other jUrtists give, IIo reads, yes, but what is tho character of hi readng A Mow mUo accompanies a lusltating rcspomw. which Is really nu nnswer.

It hs an If he meant to convey by nn intonation that these were matters only Interesting to hlmef, And as soon a- tint Imprcnloii has been, politely iiinycy It lfnunil.iliat hTn lnterlncntf- wJifcia, i.