DEMONSTRATION CALORISCOPE 

 and CALORIMETER 



An instrument designed by Prof. Ganong to show the heat release 

 in the respiration of growing seeds, buds, etc. Illustration is one- 

 fifth size of original. Complete, $ 1 8.00. 



One of the new pieces of apparatus described in our new Ganong 

 Apparatus catalog now ready for distribution, ^^'ill be sent free on 

 request. 



Bausch y Ipmb Optical (5. 



HEW YORK WASHINGTON CHICAGO SAN FRANCISCO 



LONDON liOCHESTEn.N.Y. f^I^ANKrORX 



