RUSCHENBERGER'S SERIES. 



FIRST BOOKS 



OF 



NATURAL HISTORY, 



SCHOOLS, COLLEGES, AND FAMILIES. 



1. ELEMENTS OF 



ANATOMY AND PHYSIOLOGY. 



2. ELEMENTS OF 



MAMMALOGY, 



The Natural History of Quadrupeds. 



3. ELEMENTS OF 



ORNITHOLOGY, 



The Natural History of Birds. 



4. ELEMENTS OF 



HEEPETOLOGY AND ICHTHYOLOGY, 



The Natural History of Reptiles aud Fishes. 



5. ELEMENTS OF 



CONCHOLOGY, 



The Natural History of Shells and Mollusca. 



6. ELEMENTS OF 



ENTOMOLOGY, 



The Natural History of Insects. 



7. ELEMENTS OF 



BOTANY, 



The Natural History of Plants. 



8. ELEMENTS OF 



GEOLOGY, 



The Natural History of the Earth's Structure. 



This interesting series of books has already met with the mosl 

 flattering reception ever extended to any work issued from the Amer- 

 ican press. Introduced into the Public Schools of Pennsylvania, and 

 in nearly all the first class seminaries of learning in the United States. 



