How To Know The Butterflies 



A Manual of the Butterflies of the Eastern United States, by 

 JOHN HENRY COMSTOCK 



Emeritus Professor of Entomology, Cornell University 



AND 



ANNA BOTSFORD COMSTOCK 



Professor of Nature-Study, Cornell University 



This work contains descriptions of 152 species and varieties 

 of butterflies This includes all of the species and their named 

 varieties found in the eastern half of the United States ex- 

 cepting a few extremely rare forms. 



There are 45 plates with 312 figures showing the insects in 

 their natural colors and 49 figures in the text. 



The work is written in popular form without being super- 

 ficial, and will serve as a Baedeker among Butterflies to the 

 casual observer or the close student of this most picturesque 

 phase of nature. 



A new edition nov) ready 



12mo. 

 Cloth. 

 $3.50 net; 

 postage, 

 20c. addi- 

 tional. 



THE COMSTOCK PUBLISHING COMPANY 



Ithaca, New York 



Some of Our Lists 

 Agriculture 

 An. Morphology 

 Algm & Fungi 

 Birds & Their Food 

 General Botany 

 Entomology 

 Evolution 

 Native Ferns 

 Nature Study 

 Plant Ecology 

 Plant Morphology 

 Play Grounds 

 Portraits 

 Public Parks 

 Trees & Forests 

 Wild Flowers 



Lantern Slides 



-AND- 

 PROJECTION APPARATUS 



30 SETS ON 30 SUBJECTS 



100.000 OF OUR SLIDES IN USE 



Educational Slides Our Specialty 



Send for decriptive lists. If you will send 

 your name and official position, and state the 

 subject in which you are interested, we will 

 place your name on our mailing list and send 

 you literature from time to time. 



PROJECTION FOR SCIENCE TEACHERS AND LECTURERS 

 Is a booklet of 76 pages containing descriptive lists of slides and appa- 

 ratus and it will be sent to teachers and lecturers who make the request, 

 giving name and official position plainly written. Please refer to this ad. 



Conrad Slide and Projection Co. 



4028 JACKSON BOULEVARD, CHICAGO, ILLINOIS 



Kindly mention The Nature-Study Review when replying to advertisements 



