Published by the Religious Tract Society. 



HEAT; 



ITS SOURCES, INFLUENCES, AND RESULTS. 



Illustrated with numerous Engravings. 

 16mo. square, 3s. 6d. elegantly bound in cloth, gilt edges. 



A POPULAR 

 INTRODUCTION TO THE STUDY OF BIRDS; 



OR, THE ELEMENTS OF ORNITHOLOGY, ON SCIENTIFIC PRINCIPLE 

 WITH A PARTICULAR NOTICE OF THE BIRDS MENTIONED 

 IN SCRIPTURE. 



With Two Hundred superior Engravings. 

 Royal 18mo., 8s. boards; 10s. half-bound; 12s. calf extra. 



A POPULAR 

 INTRODUCTION TO THE STUDY OF QUADRUPEDS; 



OR, OF THE CLASS MAMMALIA, ON SCIENTIFIC PRINCIPLES ; 

 ADAPTED FOR YOUTH. 



With a particular Notice of those mentioned in Scripture. 



Illustrated with about One Hundred superior Engravings. 



Royal 1 8mo., 6s. boards ; 8s. half-bound morocco ; 9s. 6d. calf extra. 



A POPULAR 

 HISTORY OF REPTILES; 



OR, AN INTRODUCTION TO THE STUDY OF THE CLASS REPTILIA. 



Illustrated with numerous superior Engravings. 



Royal 18mo. 6s. boards ; 8s. half-bound, morocco, gilt edges; 



9s. 6d. calf extra. 



