16 CLASSIFIED KEY TO INDEX. 
Paleontology — Continued. Page. 
Pleistocene 163 
General 164 
Genera and species described 168 
Panama 298 
Pennsylvania 298 
Petrology 300 
General 300 
Alabama 300 
Alaska 300 
Arizona _ . 301 
Arkansas 301 
California 301 
Canada 301 
Central America 302 
Colorado 302 
Connecticut 302 
District of Columbia 302 
Florida 302 
Guatemala 302 
Georgia 302 
Hawaiian Islands 302 
Idaho 302 
Indian Territory 302 
Indiana 302 
Iowa 302 
Jamaica 302 
Kansas 302 
Kentucky 302 
Maine 302 
Maryland 302 
Massachusetts 302 
Mexico 303 
Michigan 303 
Minnesota 303 
Missouri 303 
Montana 304 
Nebraska 304 
Nevada 304 
New Hampshire 304 
New Jersey 304 
New Mexico 304 
New York 304 
North Carolina 305 
Ohio 305 
Oregon 305 
Pennsylvania 305 
Rhode Island 305 
South Dakota 305 
Texas 305 
Utah 305 
Vermont 305 
Virginia 305 
Washington 305 
