REPOKT OF NATIONAL MUSEUM, 1911. 49 



of prehnite, were received as a gift from Dr. William S. Disbrow, of 

 Newark. Three transfers from the United States Geological Survey 

 are important from the number of type specimens they contain, 

 namely, arizonite, tantalornite, molybdite^ powellite, ludwigite, na- 

 tramblygonite, warrenite, gageite, emmonsite, bismite, lepidolite, and 

 cookeite. One of these collections in particular, made by Mr. W. T. 

 Schaller in the Tourmaline field of San Diego County, California, 

 furnished several specimens of a very striking character, which have 

 been placed on exhibition. A specimen of autunite of extraordinary 

 crystal development was presented by Mr. H. Weber, of Paris, 

 France, through Mr. Frank L. Hess, of the Geological Survey. A 

 collection of minerals and ores illustrating the important silver de- 

 posits of Cobalt, Canada, including large veins of smaltite and nug- 

 gets of dyscrasite, was obtained in exchange from Mr. Otto F. 

 Pf ordte, of Rutherford, New Jersey ; and a number of minerals from 

 the copper region of Ducktown, Tennessee, were donated by Dr. F. B. 

 Laney. A large series of showy cave calcites was transferred by the 

 General Land Office of the Department of the Interior, and a fine 

 example of crystallized ferberite and one of krohnkite, the latter 

 being a recently discovered copper mineral from Chile., were 

 purchased. 



Most important of the accessions in invertebrate paleontology were 

 two collections of Middle Cambrian fossils from British Columbia, 

 collected and described by Dr. Charles D. Walcott and deposited by 

 the Smithsonian Institution. The first consists of the unique types 

 of Eurypterids, on which a new suborder of crustaceans was founded 

 by Doctor Walcott, and the second of equally valuable types of Holo- 

 thurians. Investigations in Kentucky and Tennessee by Doctor 

 Bassler and the Hon. Frank Springer yielded about 2,000 specimens 

 of Silurian and Mississippian fossils, on which were based a com- 

 munication by Mr. Springer on the crinoids of the Knobstone forma- 

 tion and one by Doctor Bassler on the Waverlyan period of Ten- 

 nessee. A choice series of 800 specimens of Silurian and Devonian 

 fossils from western Maryland was received from the estate of the 

 late Eobert H. Gordon, of Cumberland, Maryland; and a valuable 

 collection of Devonian fossils was presented by Dr. Cooper Curtice, 

 of Livingston, Alabama. Other noteworthy gifts comprised Cin- 

 cinnatian fossils from Toronto, Canada, contributed by Prof. W. A. 

 Parks, of the University of Toronto; Mesozoic fossils from near 

 Canon City, Colorado, and from near El Paso, Texas, the former 

 donated by Lieut. Stephen Abbot, United States Army, the latter by 

 Mr. Harvey Barrett; and Cenozoic fossils presented by Mr. C. H. T. 

 Townsend and Mr. Joseph Willcox. 



Among the acquisitions in vertebrate paleontology were 20 speci- 

 mens of fossil mammals, nearly all of which are desirable for exhibi- 

 24292°— 12 4 



