NATURAL HISTOEY. 



FOE THE USE OP SCHOOLS AND FAMILIES. 



. WORTHINGTON HOOKER, M.D., 



PROFESSOR OF THE THEORY ASH PRACTICE OF MEDICINE IN YALE COLLBGE| 



AUTHOR OF "HUMAN PHYSIOLOGY," "CHILD'S BOOK OP NA'iTJRE," 



ETC., ETC. 



Sllusttateti is neavls 300 JSnataHnna. 



NEW YORK: 



HARPER & BROTHERS, PUBLISHERS, 



FRAHELIN BQDA&E. 

 18 83. 



