PART I.

NATURAL PHILOSOPHY.

BY

WORTHINGTON HOOKER, M.D.,

PROFESSOR OF THE THEORY AND PRACTICE OF MEDICINE IN YALE COLLEGE, AUTHOR OF "HUMAN PHYSIOLOGY," "CHILD'S BOOK OF NATURE," "NATURAL HISTORY," &C.

=Illustrated by nearly 300 Engravings.=

NEW YORK: HARPER & BROTHERS, PUBLISHERS, FRANKLIN SQUARE. 1873.

By Dr. Worthington Hooker.

=The Child's Book of Nature.= For the Use of Families and Schools; intended to aid Mothers and Teachers in training Children in the Observation of Nature. In three Parts. Illustrated by Engravings. The Three Parts complete in one vol. Small 4to, Cloth, $2 00; Separately, Cloth, 90 cents each.