94 Scientific Intelligence. 



In this brief paper Mr. Douglass describes a new species of the 

 genus Aphelops, A. montanus, from the upper Miocene of Flint 

 Creek Valley, Montana. Aphelops ceratorhinus, previously 

 described by the writer, is made the subject of a more elaborate 

 description, based upon the fully prepared type and upon other 

 material referable to the same species. r. s. l. 



1 9. Fossil Horses from North Dakota and Montana y by Earl 

 Douglass. Ibid, pp. 267-277, pis. lxv-lxviii — The middle Miocene 

 of Montana has yielded a new genus and species of horse, Altippus 

 taxus, while from the Loup Fork of Montana is described a new 

 species of Merychippus, M. ynissouriensis. In the Oligocene Mr. 

 Douglass found four species of Mesohippus, one of which he con- 

 siders new, Mesohippus portentus. r. s. l. 



20. Some Oligocene Lizards ; by Earl Douglass. Ibid, pp. 

 278-285. — In this paper Mr. Douglass describes a curious armored 

 lizard from the Titanotherium beds of Montana and which he 

 refers with a query to Glyptosaurus Marsh. The writer also 

 enumerates the eight species of Glyptosaurus described by Pro- 

 fessor Marsh, with brief diagnoses, for comparison with his 

 present form. There are also described and figured skulls from 

 the White River formation of Sioux Co., Neb., which the writer 

 refers to Rhineura hatcheri Baur and Peltosauras granulosus ? 

 Cope. r. s. l. 



21. Preliminary JSTotes on Some American Chalicotheres / by 

 O. A. Peterson. American Naturalist, Vol. xli, pp. 733-752. — 

 Mr. Peterson has been fortunate in securing from the remarkable 

 Agate Spring Quarry (Lower Harrison) of Sioux Co., Nebr., a 

 good deal of material which decidedly increases our knowledge 

 of the curious genus, Moropus, first described by Professor Marsh. 

 The present writer figures a partially complete skull, which he 

 refers to Moropus elatus ? Marsh, as well as excellent photo- 

 graphs of the fore and bind feet. Mr. Peterson's conclusions are 

 thus summed up : "(1) That Moropusis, excepting its unguiculate 

 feet, essentially a perissodactyl in structure. (2) That the later- 

 ally compressed and cleft condition of the terminal phalanges is 

 quite distinct in some of the early Perissodactyla, and that by 

 adaptation through geological ages the unguals, as well as other 

 parts of Moropus, were specially modified and should not, in the 

 mind of the writer, be regarded as of ordinal importance. (3) 

 That Moropus is generically separable from other known forms 

 of the Chalicotherioidea." r. s. l. 



III. Botany and Zoology. 



1. The Harvard Botanical Station in Cuba. — In December 

 1899, the writer, in company with Mr. Oakes Ames, Assistant- 

 Director of the Botanic Garden of Harvard University, visited 

 the sugar estate of E. F. Atkins, Esq., with the view of ascertain- 

 ing what opportunity, if any, existed for conducting experiments 



