EEPORT OF NATIOXAL MUSEUM, 1921. 85 



Approximate!}^ 25.000 specimens of Silurian and Devonian fossils 

 from Maine, representing the final shipment of collections made by 

 the late Prof. H. S. Williams, have been transferred from the Geo- 

 logical Survey. The collections from these horizons have been 

 further supplemented by valuable and much-needed materials se- 

 cured through three exchanges with Eaymond E, Hibbard, of Buf- 

 falo, N. Y. 



Additional noteworthy accessions are: An especially selected lot 

 of Carboniferous foraminifera, gift of Hon. Charles H. Morrill, 

 Lincoln, Xebr. ; a large collection containing many new species, par- 

 ticularly of fossil sponges and trilobites, from a hitherto vmrepre- 

 sented area in Nevada, received in exchange from Mr. H. G. Clinton, 

 Manhattan, Xev. ; and a large slab of fossiliferous Ordovician lime- 

 stone from southwestern Ohio, obtained by the curator for exhibi- 

 tion purposes. 



By far the most important accession to the section of vertebrate 

 paleontology is a collection of more than a hundred specimens of 

 vertebrate remains, mostly mammalian, representing a new Pliocene 

 fauna of 30 or more species, obtained by Mr. J. W. Gidley, working 

 under the joint auspices of the National Museum and the Geological 

 Survey. The collection includes basic material for two skeleton 

 restorations, one of a little-lniown species of mastodon, the other a 

 new species of Glyptotherium. Mr. Gidley also collected from the 

 " bone quarry " at Agate, Nebr., a block or slab, 5^ by 3^ feet, and 

 14 inches thick, weighing upward of 4,000 pounds, and containing 

 numerous fossil bones, mostly of the little two-horned rhinoceros 

 Diceratherium cooki. 



Mr. C, W, Gilmore, while investigating certain fossiliferous areas 

 in New Mexico, noted elsewhere, secured interesting mammalian 

 remains. 



Of the materials acquired by exchange, mention may be made of 

 a fossil turtle, Bystra norms, a rare specimen and the type of the 

 genus, received from the Buffalo Society of Natural Sciences; a 

 disarticulated skull and lower jaws of the crested dinosaur Stephan- 

 osaurus, the first representative of this reptile to be secured for the 

 national collections; part of a skull and lower jaw of a Pleistocene 

 elephant from an unknown locality, and an elephant tooth from 

 Otranto, Italy, received from Ward's Natural Science Establish- 

 ment ; approximately 200 specimens of Pleistocene mammals from a 

 cave deposit near Coconino County, Ariz., received from the Uni- 

 versity of Arizona; and two skulls of Diceratheriuin cooki and casts 

 of two Permian reptile skulls from the University of Chicago. 



The lower jaw of a Pleistocene mastodon from near Yazoo City, 

 Miss., gift of the Yazoo Commercial Club; a jawbone with teeth 

 intact of the fossil shark, Edestus heim^chsii, gift of the Southern 



