Jan. 1935 Annual Report of the Director 201 



Wisconsin, presented a collection of fulgurites from Wisconsin. From 

 Mr. J. 0. Shead, of Norman, Oklahoma, was received a gift of nine 

 of the curious barite roses found in his state. Mrs. T. R. Jones, of 

 Ashland, Nebraska, presented examples of dendrite tracings on 

 novaculite, and Mr. John A. Manley, of New Brunswick, New 

 Jersey, presented two limonite geodes of an unusual kind. 



The most important addition to the economic collections was a 

 series of thirty-seven specimens from an unusual lead and zinc 

 deposit of Embreeville, Tennessee, the gift of Mr. Seymour Wheeler 

 to be credited to his father, the late Mr. Charles P. Wheeler, of 

 Chicago, who discovered and developed the deposit. These specimens 

 of ore have the appearance of stalactites, stalagmites and various 

 cave floor and wall deposits which in ordinary caves are composed of 

 carbonates of lime and gypsum. Because of their interest and beauty 

 they have been exhibited by themselves in an individual case in 

 Frederick J. V. Skiff Hall (Hall 37). 



Three specimens of the radium and silver ores of Great Bear 

 Lake, Canada, the gift of the El Dorado Gold Mines, Ltd., permit 

 for the first time a representation of this important radium deposit. 



Mr. Jack Weil, of Chicago, presented sixteen specimens of mis- 

 cellaneous ores from Colorado. A typical specimen of rich telluride 

 gold ore, the gift of Wright-Hargreaves Mines, Ltd., Kirkland 

 Lake, Ontario, Canada, permits a better representation of the 

 unusual ores of that district. 



A polished slab of Mexican onyx from Wisconsin, the gift of 

 Mr. Edward B. Sylvanus, of Chicago, is an interesting addition to 

 the marble collection as it is from a quarry much nearer Chicago 

 than the usual sources of this ornamental stone. 



Mr. Henry Field, of Chicago, presented a collection of sixty 

 fossils from Germany and England. Numerous examples of the 

 well-preserved fossil fish of Solenhofen were included, as well as 

 excellent examples of English invertebrates. The fossils were accom- 

 panied by a collection of English ores and rocks. 



An interesting addition to the fossil collection was a group of 

 twelve fossils of pre-Cambrian age which Mr. Carroll Lane Fenton, 

 of West Liberty, Iowa, collected in Glacier National Park and pre- 

 sented to the Museum. Fossils of so early an age are necessarily 

 poorly preserved but they are very rare and come from a time 

 nearer the beginnings of life than do the fossils usually seen in 

 collections. These fossils were accompanied by twenty-seven other 

 specimens of geological interest, such as impressions left on the 



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