L\NTERN SLIDES 

 and PROJECTION 



For Nature-Study and Science Teachers 



Our Booklet, 

 Projection for 

 Science Teachers 

 and Lecturers, in 

 addition to obser- 

 vations on projec- 

 tion, contains descriptive matter and lists of Fifteen Sets of 

 Educational Slides — more than 800 slides and over 

 4000 illustrations. 



This booklet will be sent to any one who will send name, FK>sition and 

 address plainly written, auid mention Nature-Study Review. Address 



CONRAD SLIDE AND PROJECTION COMPANY 



4028 JACKSON BOULEVARD, CHICAGO 



(Authors and Manufacturers of the Conrad Slides) 



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