PROF. AVERY'S 

 NATURAL SCIENCE SERIES. 



ISt. 



THE ELEMENTS OF NATURAL PHILOSOPHY. 



2nd. 

 TEACHER'S HAND BOOK. 



TO ACCOMPANY AVERY'S NATURAL PHILOSOPHY; CONTAINING 

 SOLUTIONS OF PROBLEMS, PRACTICAL SUGGESTIONS, &c. 



3rd. 

 AVERY'S ELEMENTS OF CHEMISTRY. 



Copyright, 1878, by Sheldon & Co. 



Electrotypcd by SMITH & MoDouo.u,, 82 Beck:nan Street, New York. 



