I 



Natural History Material 



Popular and Scientific Collections 



We are prepared to furnish collections and exhibition specimens 

 covering all the branches of Natural Science. If interested write for 

 our circulars and catalogues. 



A FEW RECENT CIRCULARS 



NS-lOO List of circulars and catalogues 



NS-125 Life Histories of Insects of Economic Importance 



NS-88 Collections of Minerals and Rocks 



NS-115 Collections of Fossils 



NS-127 Sigmond's Histology Slides and Text 



NS-28 Biological Supplies 



NS-29 Microscope Slides 



NS-134 Complete Trilobites 



NS-30 Entomological Supplies 



NS-138 Bird Skin List 



NS-124 Mammal Skin List 



NS-94 Casts of Reptiles and Fishes 



NS-106 Lull's Palaeontological Restorations 



Ward's Natural Science Establishment 



84-102 College Ave. Rochester, N. Y. 



LANTERN 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, position and 

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



CONRAD SLIDE AND PROJECTION COMPANY 



4028 JACKSON BOULEVARD, CHICAGO 



(Authors and Manufacturers of the Conrad Slides) 



Kindly mention Nature-Study Review when replying to advertisements 



