THE 



POLAR ' AND TROPICAL 

 WOELDS: 



A DESCRIPTION OF MAN AND NATURE 



olar and f quatorial felons of the llobs 



>V 1 *\ J V7 



BY DR. G-, HARTWIG, A 



AUTHOR OF " THP: SEA AND ITS LIVING WONDERS," AND THE 

 "HARMONIES OF NATURE." 



EDITED, WITH ADDITIONAL CHAPTERS, BY 



DR. A. H. GUERNSEY. 



WITH NEARLY TWO HUNDRED ILLUSTRATIONS. 



SAN FRANCISCO, CAL. : 

 A. L. BANCROFT & COMPANY. 



1871. 



