172 Bulletin Wisconsin National History Society. [Vol. 9, No. 4. 



Dr. Philo R. Hoy of Racine, Wis., a contemporary of Prof. 

 Lapham and Dr. Day, had made large collections from the Niagara 

 formation at Racine. He also aided Prof. Hall very materially 

 and was very generous with his collections to other specialists and 

 interested persons. At the end what little he had left was divided 

 between the collections of Dr. Day and Racine College. 



Mr. T. J. Hale of Chicago, 111., who was an extensive collec- 

 tor in Wisconsin in a commercial way, at about the same time, also 

 furnished Prof. Hall with many fine specimens. 



The collection of the late Thomas A. Greene of Milwaukee, 

 Wis., who for many years in the eighties and nineties, was a very 

 active collector in southeastern Wisconsin, is probably one of the 

 largest in the northwest for a private collection and is still in the 

 possession of the members of his family. From this collection 

 much material was used by Hall and Clarke in illustrating the 

 Brachiupoda in volume eight of the Paleontology ot New York 

 among which are several types. 



The collection of Mr. F. L. Horneffer of Milwaukee, Wis., 

 made during the nineties by a most enthusiastic and careful col- 

 lector, containing many choice specimens and which has furnished 

 some type material became a part of the Teller collection. 



The collection of Mr. Charles E. Monroe, made up largely of 

 specimens from the Hamilton formation of the western states and 

 Canada, and from which a number of types have been described, 

 is now one of the valued possessions of the Milwaukee Public 

 Museum and one of their principal exhibits. 



The Teller collection, made during the past thirty years, while 

 large, consists mainly of southeastern Wisconsin material, from 

 which a number of types have been described and is still in the 

 possession of the collector. 



Several non-resident collectors have made good collections 



