REPORT OF NATIONAL MUSEUM, 1918. 53 



invertebrate paleontology, 16,950 specimens; section of vertebrate 

 paleontology, 321 specimens; section of paleobotany, 625 specimens. 

 There were also received from various sources for examination and 

 report 337 lots of specimens of rocks or supposed mineral-bearing 

 material and 30 lots of fossils. 



Systematic and applied geology. — Special attention has been paid 

 to building up the collection of minerals heretofore classed as rare 

 earths and rare metals, which have become of importance through 

 the outbreak of the war. A group of exhibition specimens, secured 

 largely through the efforts of Mr. F. L. Hess, consists of a large 

 mass of scheelite ore weighing 2,614 pounds, showing the full width 

 of the vein, and said to be the largest mass of tungsten ore yet 

 mined, presented by the Atolia Mining Co., San Francisco, Cali- 

 fornia; about 100 pounds of molybdenum-copper ore from Mohave 

 County, Arizona, showing the interesting geological associations of 

 the molybdenite, gift of the Leviathan Mines Co., Yucca, Arizona; 

 30 specimens of partly oxidized tungsten ore from the San Antonio 

 mine, Pongo, Oruro, Bolivia, showing the atmospheric alteration 

 of the common tungsten ore mineral wolframite, donated by Mr. 

 Rafael Taborga, New York City; a specimen of scheelite ore re- 

 placing limestone and showing unusually large cleavage surfaces of 

 the ore mineral, gift of Mr. Russell Moyle, Osceola, Nevada ; a sawn 

 mass of brecciated f erberite ore, the so-called " peanut ore," from 

 the Dorothy vein, Boulder County, Colorado, transferred by the 

 United States Geological Survey; a specimen of molybdenite and 

 molybdite in altered rhyolite, from Chico, Montana, and molybde- 

 nite from the mine of George Fast, near La Dura, Sonora, Mexico, 

 presented by Mr. John Fodness, Chico, Montana, and Mr. L. C. 

 Barlow, Deming, New Mexico, respectively; a mass of the newly 

 discovered sulphide tungstenite, from the Emma Consolidated 

 Mines, at Alta, Utah, gift of Mr. William Garret Ridgley, New 

 York City ; a specimen of crystallized ferberite from the Gale Mine, 

 Nederland, Colorado, donated by Mr. Harry E. Penny, Boulder, 

 Colorado; a collection of 15 ores and minerals, including molyb- 

 denite from Canada, carnotite replacing wood, and ferberite in the 

 form of iridescent crystals, from Colorado, as well as other inter- 

 esting specimens, presented by Mr. F. W. Horton, Washington City; 

 and a specimen of the rare uranium-vanadium mineral uvanite, im- 

 pregnating friable sandstone, from Temple Rock, Emery County, 

 Utah. This accession also includes gypsum and magnesite specimens 

 from California, described by Mr. F. L. Hess, and was a transfer 

 from the United States Geological Survey. 



The exhibit of steel-hardening metals was further augmented by 

 a number of specimens of vanadium ores with incrustations of crys- 

 tals of the ore minerals vanadinite and descloizite, from the mines 



