THE FOURTEEN WEEKS' COURSES 



IN 



NATURAL SCIENCE, 



BY 



J. DORMAN STEELE, A.M., Ph.D. 



Fourteet) Weeks iij Natural Pljilosopljy, 

 Fourteei) Weeks iij Cljenjistry, 

 Fourteei] Weeks ii) Descriptive Astroijonjy, 

 Fourteei) Weeks ii) Popular Geology, 

 Fourteei] Weeks ii] Human Pljysiojogy, 

 Fourteeq Weeks ii] Zoology, 

 Fourteei; Weeks ii] Botaijy, 



A Key, containing Answers to the Questions 

 and Problems in Steele's 14 Weeks' Courses, 



i^ FIISTORI^L SERIES, 



ON THE PLAN OF STEELE'S I4 WEEKS IN THE SCIENCES. 



A Brief l^istory of the Uijited States, 

 A Brief I^istory of Fraijce, 



The same publishers also oflFer the following standard scientific 

 worlcs, being more extended or difficult treatises than those of 

 Prof. Steele, though still of Academic grade. 



Peck's Ganot's Natural Philosophy, 

 Porter's Priijciples of Cljemistry, 

 Jarvis' Pljysiology and Laws of Healtl), 

 Wood's Botanist and Florist, 

 Cljanjbers' Elenjents of Zoology, 

 I^clijtyre's J^stroijomy and tlje Globes, 

 Page's Elenjents of Geology, 



Entered according to Act of Congress, in the year 1872, by 



A. "S. BARN ES & CO., 



In the Clerk's Office of the District Court of the United States 



for the Southern District of New York. 



Steele's zool. 



