Laboratory Manual of Botany 



FOR THE HIGH SCHOOL 



BY WILLARD N. CLUTE 



The leading characteristics of this new and in many ways unique laboratory 

 botany are (1) its presentation of a connected study of evolution in the plant 

 world; (2) its method of thorough and suggestive direction for both teacher and 

 pupil; (3) its concise yet adequate lists of questions for answer in notebooks 

 after actual field or laboratory investigation; (4) its clear and accurate outlines 

 of the specific subjects. 



In addition, it contains a glossary of difficult terms in each section, a key 

 for outdoor work with trees, outlines for a study of floral ecology, and tables 

 of the principal families and larger groups of the plant world. 



The practical value of the book is assured by the fact that it is written by a 

 high-school teacher and has been used, in outline, for six years with marked 

 success in one of the largest high schools in the United States. It is absolutely 

 flexible and can be condensed or extended by individual teachers at any point 

 without detriment to the work. 



GINN & COMPANY, PUBLISHERS 



Boston New York Chicago London 



Atlanta Dallas Columbus San Francisco 



Darwin and DeVries 



De Vries has put the finishing touch upon Darwinism and his famous Muta- 

 tion theory is certain to claim a place equal in rank to tlie Darwinian theory it- 

 self. Everybody who expects to understand current scientific literature must 

 have a knowledge of how species are supposed to originate by mutations and 

 the only book which goes exhaustively into the subject is 



SPECIES AND VARIETIES-Their Origin by Mutation 



By Hugo De Vries. Octavo. 853 pages. $5 postpaid. Two years subscription to 

 AMERICAN BOTANIST given free with each order. 



Less expensive but none the less important is 



PLANT BREEDING-Comments Upon the Experiments ot Burbank and Nilsson 



By Hugo De Vries. Octavo 375 pages. $1.70 postpaid. Sent with a full set of 

 AMERICAN BOTANIST for $6.50. 



Willard N. Glute & Go, 



JOLIET, ILL. 



