SCIENCE 



New Series. 



Vol. VIII. No. 208. 



Feiday, December 23, 1898. "^^^^^^^^^^ 



Annual Subsckiption, $5.00. 



DISSECTING IVIICROSCOPES 



of every size, style and price, suited for all kinds of work. 



NEW W DISSECTING MICROSCOPE. 



A NEW series of lenses for dissecting work, which have unusually long work= 

 ■^^ ing distance and large flat field, has recently, been perfected by us. These 

 lenses are offered at prices less than any lenses of equal quality heretofore in use. 

 The new Dissecting Stands are all nickeled metal, have glass stages. Catalog free. 



BAUSCH & LOMB OPTICAL CO. 



NEW YORK OFFICE: 



2Sth Street and Broadway, 



Townsend BIdg. 



ROCHESTER, N. Y. 



CHICAGO OFFICE: 



State and Washington Streets, 



Stewart BIdg. 



