348 Scientific Intelligence. 



arate experiments for senior work, in which the general subject 

 matter of the experiment is clearly given, but greater scope in 

 performance is given to the student. In the last part, the student 

 is dependent entirely upon his individual efforts. 



The work does credit to the department from which it em- 

 anates ; Dr. Nichols and his collaborators are to be congratulated 

 itpon the result of their labors. F. b. 



II. Geology and Mineralogy. 



1. The Geological Society of America. — The sixth summer 

 meeting of the geological society was held in Brooklyn, N. T., 

 Tuesday and Wednesday, August 14 and 15. The following 

 papers were read : 



J. F. Kemp: The nickel mine at Lancaster Gap, Pa , and the pyrrhotite deposit 

 at Anthony's Nose, on the Hudson. 



Alfred C. Lane : A connection between the chemical and optical properties 

 of amphiboles. 



C. H. Smyth, Jr.: On a basic rock derived from granite. 



Edmund Otis Hovet: A study of the cherts of Missouri. 



Arthur Hollick: Dislocations in certain portions of the Atlantic coastal 

 plain strata and their probable causes. 



J. W. Spencer : Reconstruction of the Antillean continent. 



N. S. Shaler: Evidences as to the change of sea-level. 



W. J. McGee: The extension of uniformitarianism to deformation. 



D- P. Lincoln: Drumlins in the vicinity of Geneva, N. Y. 



George H. Barton: Channels on drumlins caused by erosion of glacial 

 streams. 



James Perrin Smith : The Trias and Jura of Shasta County, California. 



Henry S. Williams : The age of the Manganese deposits of the Batesville 

 region of Arkansas. 



Abstracts were read of the following papers in the absence of 

 their authors, viz: 



Harold W. Fairbanks: Review of our knowledge of the geology of the 

 Californian coast ranges. 

 Chas. S. Prosser: The Permo-Carboniferous and Permian rocks of Kansas. 



The winter meeting of the society is to be held at Baltimore, 

 Md., notice of which will be sent to the fellows by the Secretary. 



2. A New Miocene Tapir ; by O. C. Marsh. — An interest- 

 ing ungulate mammal, probably an ancestor of the modern 

 Tapirs, is indicated by a pair of lower jaws in good condition 

 recently found in the Miohippus beds of South Dakota. This 

 specimen shows the same form, and essentially the same dentition 

 as in Tapirus, but the last premolar only is like the molars. 

 There is a small secant canine close to the outer incisor, and 

 behind it a long diastema. The extent of the premolar and molar 

 series is four inches, and of the entire dentition six and one-half 

 inches. From Colodon, an allied form, this specimen may be 

 distinguished by the presence of a canine, and absence of a heel 

 on the last lower molar. The known remains indicate an animal 

 about half the size of the existing Tapirs. It may be called 

 Tanyops undans. 



Yale Museum, September 22, 1894. 



