38 BEPORT OF NATIONAL MUSEUM, 1899. 



series of rocks illustrating the Upper Cambrian formations of the 

 Lake Superior region, collected Ijy Mr. C. R. Van Hise, of the U. S. 

 Geological Survey; a series of clastic rocks illustrating the geology 

 of the slate regions of eastern Now York and western Vermont, col- 

 lected by Prof. T. N. Dale, of the Geological Survey; a fine series 

 of jointed sandstones from the Black Hills of South Dakota, collected 

 by Mr. N. II. Darton, of the Geological Surve}^; and a series of vol- 

 canic products from Vesuvius and other parts of Italy, collected by 

 Mr. F. W. Crosby. 



The Division of Mineralogy has been enriched by the acquisition of 

 samples of •! new minerals — erionite, wellsite, bixbjdte, and clinohe- 

 drite — as well as of 11 other species new to the collection; and of 3 

 new meteorites from Polk Count}^, Minnesota; Adams County, Penn- 

 sylvania, and Mount Oscuro, New Mexico, respectively. 



Mention should be made of specimens of roscoelite on auriferous 

 quartz from Eldorado County, California, and 5 specimens of crj^stal- 

 lized arsenic from Japan. 



The gem collection has received, through the liberality of Dr. L. T. 

 Chamberlain, a fine cut citrine quartz, weighing 139^ carats; 21 cut 

 Montana sapphires, selected to show colors, and 2 cut sapphir(\s, 

 weighing 3i carats, all from Yogo Gulch, Montana; 1 opal from 

 Mexico, and 2 garnets of the variety rhodolite, from North Carolina. 

 Four opals from Mexico were also obtained by purchase. 



In the Section of Vertebrate Fossils the accessions especially 

 worthy of note are a series of mammal skulls from a new localitj" in 

 the White River Miocene, from the Geological Survey; a fine skull 

 of Ilyracodon nehrascensia^ the gift of Mr. A. W. Barber, and the fossil 

 skull of a new species of bear and a small series of fish remains from 

 the chalk formations of Kansas, collected by Mr. A. B. Baker. 



An account of the large series of fossil vertebrates forming the 

 Marsh collection at Yale University, which is in progress of removal 

 from New Haven, will be deferred for the report for next year. 



The collection of vertebrate fossils from the Cope estate, mentioned 

 in the last report, was received early in the year. This collection, it 

 will be remembered, was made under the auspices of the Hayden 

 Survey, and comprises over 175 specimens, including many of the types 

 of fishes and reptiles described by Professor Cope in his volume on 

 the Vertebrates of the Tertiary formation of the West and in the 

 Bulletins of the Survey. 



The accessions in the section of Invertebrate Fossils are reported by 

 Mr. Schuchert as being neither so large nor so valuable as last j^ear. 

 A large portion of the material received was deposited by the U. S. 

 Geological Survey, and consists of 6,531 Paleozoic fossils, 211 Meso- 

 zoic, and 16 Tertiary. Among these the most valuable is a series of 

 3,990 specimens of Cambrian brachiopods, determined by Prof. Charles 



