by Alexander Winchell, LL.D.,
Professor of Geology, Zoology, and Botany
in the University of Michigan,
and Director of the State Geological Survey
459 pp. Illustrated with 101 Figures.
This electronic edition prepared by Dr. David C. Bossard
from original documents in the library holdings of
Dartmouth College, Hanover New Hampshire.
April, 2002.Copyright © 2002 by David C. Bossard