REPOET OP' ASSISTANT SECRETARY. 53 



the custody' of thv National ]Museiini, subject onh' to the usual restric- 

 tions. The work of packinj^- and shipping-, which fell to the lot of 

 this department, under the inunediate supervision of ]\Ir. F. A. Lucas, 

 was begun in April, 1899, as stated in mj^ last report, and completed the 

 following Novenil)er, the tinal transfer being made December 8, as will 

 be observed frojii an abstract of the correspondence here inserted. 



Department of the Interior, 



United States Geological Survey, 



December 8, 1899. 

 Prof. S. P. Lang ley, 



Secretary, Smithsonian Institution, Waslungtun, D. C. 



Dear Sir: I have the honor to state that all the %ertebrate collections of the late 

 Prof. O. C. Marsh, belonging to the Government, have been shipped from New 

 Haven, Conn., and are now transferred to the custody of the United States National 

 Museum, subject only to the use of such material as may be necessary for study and 

 illustration in the completion of the monographs that were in course of preparation 

 by Professor Marsh at the time of his death. 



From a statement submitted by Mr. F. A. Lucas, who had charge of the packing 

 of the collections, it appears that there were 1,200 trays (20 by 26 inches) of speci- 

 mens, 200 unopened boxes as received from the field, 30 blocks, and 90 prepared 

 specimens. To ship this material required 592 boxes, forming 5 carloads, having an 

 aggregate Aveight of 160,000 pounds. To this tliere should be added 2 carloads, con- 

 taining 211 boxes, received from Professor Marsh on deposit in 1891 and 1898. 



The actual number of specimens represented in this collection can not be stated. 

 They range in size from minute teeth of fossil mammals to individual specimens 

 weighing from 500 to 2,000 pounds each. The collections are rich in large Dinosauria, 

 especially in examples of Triceratops and Stegosaurus, while the series of Titanothe- 

 rium skulls is one of the best, if not the best, in existence. It contains fifty or more 

 complete examples cleaned, and a number in the rough, besides many hundred 

 bones. 



Among the specimens transferred are the types of forty or more species, including 

 Dinosaurs, and Jurassic, Cretaceous, and Tertiary mammals. Among the types are 

 the following: 



Dinosaurs. Jurassic mammals. 



Diplodocus longus. Paurodon valens. 



Labrosaurus ferox. Manacodon rarus. 



Camptosauriis nanus. Enneodon crassus. 



Triceratops sulcatus. Enneodon qffi7iis. 



Triceratops californis. iModon venustus. 

 Triceratops obtusa. Crefaceous mammals. 



I'leorocceius nanus. Priconodon crassus. 



Ceratosaurus nasicornis. Oimolodon agilis. 



Ceratops montanus. Telacodon prxstans. 



Ceratops aUicomis. Oracodon cenulus. 



Crocodiles. Allacodon pumilis. 



Khylidodon rostratus. Batodon tenuis. 



Snakes. Allacodon fortis. 

 Coniophis precedens. 



It is to be recalled that these collections were made by Professor Marsh during his 

 connection with the Geological Survey, from 1882 to 1892, inclusive; that prior to his 

 connection with the Survey he made large collections, including the toothed birds, 



