JOURNAL OF PROCEEDINGS. 699 
zool. d’Acclimatation, Jan.’60, from the Society; Beitriige zur 
Kenntniss der Spaltéffnungen,—-Ueber ein neues Vorkommen, 
&c.,—Untersuchungen iiber der Zusammenhang, &c.,—Stu- 
dien aus der Natur, &c., von Dr. Adolph Weiss, Wien, 1858, 
from the Author. 
Dr. T. C. Hilgard entered upon an elaborate discussion of 
the original and actual present signification of the empirical 
”? 
term “ Species. 
April 2, 1860. 
Dr. H. A. Provt, President, in the Chair. 
the Megalonyx,—by Joseph Leidy, M.D. (Extrs. from the 
Trans, AuieeY dh. Sod: Vol. XI., Philad.), from the Author ; 
Prodromus descriptionis animal. evertebratorum, que, e 
rtebra 
cet., observavit et descripsit W. Stimpson, Pars nf Proc. 
Acad. Nat. Sciences, Philad., Jan, 1860), from the uthor. | 
Dr. H. A. Prout exhibited a fossil tooth found at King's 
Salt Works, near Abingdon, Va. 
ing before the 
Dr. P. remarked, that he had the pleasure of presenting ; 
Academy, to-night, the fragment of a large molar tooth, a fossil remain of 
longed, he believed that in the specimen before him he ote spa assert, 
that it did not belong to any of the forms of gigantic fossi’ 
itori raing in the T ,_ The 
jae TePositories of organic remains tae seein to show that this ani- 
mal was nearly allied to the Titanotherium, while the great width and 
