No. 7981. Specimen Mounts 



-uios or pi^^js. <^onsisis or weii nuio 

 .qver that ma^ be sealed on. 



These mouii^ will be found very tiseful for preserving »pt 

 cbDectex! by J^ature-Study Classes, as they preserve the st 

 ircm rs and destructive insects, occupy l 



^1"**^ ' ^ ^^'^ T ife Histories may be asseni ., .. 



'er dozen of a 8ixe« net 1.70 2.00 2.30 4.50 



Bach, net ^ .12 .15 .iQ ^-^ .40 



Send for our Catalog N. 



CENTRAL SCIENTIFIC COMPANY 



Sctemific Apparatus and Lal>ontory Supplies 



345 W. Michigan St. CHICAGO. ILi- 



Handbook of 

 Nature -Study 



by Anna Bottford Comsiock 



Based on 



Cornell Nature-Study 



Leaflets 



More than two hundred 

 lessons on common birds, 

 ammals. insects, plants 

 and trees, worked out in 

 detail for teacher and puptL 

 950 /page*, more than 1000 

 iliustrations. 



Send for Circular 

 and Sample Pages 



Bound in one VoL| $3.25. Postage 40c. 

 Bound in two Vols., 4.00. Postage 50c. 



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