Slate Engineer Ellery this afternoon appointed W. D. Coates Jv., formerly in the service of the Slate Engineer, to succeed George Sellon, who waa released from the position of Slate architect. Coates for several yaart waa employed a draftsman for Eller)', and 'is regarded aa one of the best architects In the State. A salary of $4t00 a year will be received by Mr. Coates for his services. He will commence hit duties In bis new office Saturday.