50 proceedings of the academy op 



Pebruary 6. 

 The President, Dr. Ruschenberger, in the chair. 

 Twenty-one members present. 



Prof. Leidy stated that he had recentl}'' received a small col- 

 lection of fossils for examination from Prof. J. D. Whitne}^, who 

 obtained them from California. The specimens are as follows: — 



A fragment of an inferior molar, apparently of llasfodon ameri- 

 canits. Of this specimen Prof. Whitnc}^ remarks that it was ob- 

 tained from a depth of 80 feet beneath the basaltic lava of Table 

 Mountain, Tuolumne County, Cal., where it was found in associa- 

 tion with remains of human art. 



A much worn lower molar of a large horse, probabl}^ the Equus 

 paciflcus. From 16 feet on Gorden Gulch. The triturating sur- 

 face of the crown measures 13i lines fore and aft, and 10 lines 

 transversely, inclusive of the cementum. 



Two equine molar teeth, which, according to the accompanying 

 label, were obtained 350 feet below the surface, at Soulsbyville, 

 Tuolumne County, Cal. One is an unworn upper back molar, 

 appai'cntly of a species of Pr-otohippiis. It is moderately curved 

 from behind forward and downward, but only slightly from within 

 outward. It is 21 lines long in a straight line. Its irreatest 



o o o 



breadth above the middle, fore and aft, is nearly 9 lines ; its thick- 

 ness, about T lines. 



The other tooth is a lower molar, about one-third worn, proba- 

 bly of the same species. The triturating surface is 10 lines fore 

 and aft, and nearly *7 transversely. 



Two teeth labelled "Found 10 feet below the surface at Dry 

 Creek, near Bear Creek, Mercer Count}^, Cal." One of the speci- 

 mens appears to be the portion of a canine tooth, and the other 

 is an incisor. They resemble in form the corresponding teeth of 

 the lama, and probably belong to a species of the same genus. 

 The incisor is about 1^ inch in length ; the crown externally is 

 11 lines long and 4|- lines wide. 



In a recent letter. Prof. Whitney informs me that the collection 

 of fossils, indicated in the Proceedings for 1810, page 125, was 

 obtained from the same locality as the two teeth just mentioned ; 

 that is to say, from Dry Creek, Mercer County, Cal. The locality 

 given at the time with the notice of the specimens is erroneous. 



February 14. 

 Mr. Vaux, Vice-President, in the chair. 

 Eleven members present. 



[May 9, 



