l( l 4 REPORT OF NATIONAL MUSEUM, 1920. 



Ivan O. Lee. Jersey City, New Jersey, described by the donor and 

 Dr. Edgar T. Wherry; an exceptional specimen of the mineral 

 ptilolite from Challis, Idaho, gift of Dr. C. L. Kirtley; one of the 

 rare mineral nesquehonite, presented by S. G. Gordon, Philadelphia; 

 one of inyoite from a new locality in Nova Scotia, gift of the Albert 

 .Manufacturing Company, Hillsboro, New Brunswick; and exam- 

 ples of the rare mineral artinite and demantoid garnets from Italy. 

 acquired by purchase, also need mention. 



As in previous years, a very considerable portion of the accessions 

 have come from the United States Geological Survey. During the 

 past year these have been unusual in quantity and in scientific value. 

 They included the original material which had been the subject of 

 special investigation in the chemical laboratory of the Survey, as 

 well as interesting additions to our series from the California pegma- 

 tite deposits, and many miscellaneous minerals, the transfer of which 

 was incidental to the resignation of Doctor Schaller elsewhere re- 

 ferred to: a described series of manganese ores from western locali- 

 ties; the reference collection illustrating the report by Mr. F. L. 

 Ransome on the Ray and Miami copper districts, Arizona, and that 

 illustrating the ore deposits of Tonopah, Nevada, as described by 

 -Messrs. Edson S. Bastin and Francis B. Laney; and. in addition, 

 about 100 standard drawers containing the collections from the 

 Yellowstone Park made under the direction of Dr. Arnold Hague 

 and 'described, in part, in volume 32 of the Survey Monographs, and 

 collections from the Southern Appalachians and Nicaragua by 

 Messrs. C. AY. Hayes and others; also some 80 boxes of miscellaneous 

 material, chiefty well borings and Alaskan rocks. 



Other valuable additions to the study series from the Survey in- 

 clude the large collections of Silurian and Devonian invertebrates 

 assembled by Dr. E. M. Kindle during his many years with the 

 Survey and estimated to consist of at least 25,000 specimens, and per- 

 haps 1,000 specimens from the Lance formation of the Dakotas. com- 

 prising the types and associated specimens described by Dr. T. W. 

 Stanton in Professional Paper Xo. 12S. 



Large collections from various areas in the West Indies have been 

 acquired. What is probably the largest single collection of West 

 Indian or South American fossils that has ever come to the Museum 

 is one from the Dominican Republic, embracing many hundreds of 

 species including calcareous algae, foraminifera, corals, echinoids, 

 crustaceans, and mollusks. These were collected by Dr. T. W. 

 Vaughan and his associates and presented through the U. S. Geo- 

 logical Survey by the Military Government of the Dominican Re- 

 public. 



Accessions comprising some 10,000 specimens of Upper Cambrian 

 forms from Wisconsin, collected and presented by Mr. W. O. Ilotch- 



