AMERICAN 
NATURALIST 
A MONTHLY JOURNAL fap 
DEVOTED TO THE NATURAL SCIENCES ee 
- IN THEIR WIDEST SENSE. : 
MANAGING EDITORS: 
PROFS. E. D. COPE, Philadelphia, AND J. S. KINGSLEY, Tufts College, College mil, Mass. 
B? ASSOCIATE EDITO RS: 
; pe e o aTeo en, Dr. C-E. BESSEY, Lincoln, Neb., 
or. C. M. WEED, Durham, N. H., © Pror. W. S. BA YLEY, Waterville, Maine, 
Pror. A. c. GILL, Ithaca. ‘PROP. H. C: WARREN, Princeton. 
Vol. XXX. x “NOVEMBER, 1896. eee 
CON TEAN TS; 
PAGE 
- Piney Brancu (D. C.) Quarry WORKSHOP AND Epi dote and its Bia te Properties — 
ITS IMPLEMENTS, EE cellaneous Notes. . 
Thomas Wilson. 873 Geology and Patan. Permian i 
| THE GEOGRAPHICAL DISTRIBUTION OF BATRACHIA Vertebrata with te 
AND REPTILIA IN NORTH AMERICA. Ameghino on ae Evolution of 3 
Tats E. D. Cope. 886 | Teeth—Eozoon canadens e—Thiekness 
FOSSILS AND FOSSILIZATION. . Z. P. Gratacap. 902 | Coal Measures—Geolog ical News. 
ITIC Peel wes 
i i T STATE OF e! CRT te 
KnowrEnce. 1 (Continued). 
Erwin F. Smith, 912 
Boron’ TABLE.—Personal Names in shige EP 
re ;— Species cain am Nam 
Deep Se : . 
