THE MICROSCOPICAL ADVERTISER. 



dcroscopes, Stjectives, & ftccessories 



MANUFACTURED BY 



BAUSCH & LOMB 

 OPTICAL CO. 



ROCHESTER, N. Y. 



NEW YORK CITY. 



Gentlemen : 



I have received the l" Oil Immersion Objectives ordered for the Hoaj- 

 land Laboiatory, and 1 am very much pleased with them. 



I do not know of a better ,'./' Oil Immersion Objective for bacteriologi- 

 cal work, and shall recommend this lens in future in preference to any 

 foreign objective of the same cost. 



Yery truly yours, 



GEO. M. STERNBERG. 



N. B. — The ten objectives referred to above are our Series I, Oil 

 Immersion, having N. A. 1.25, and were ordered for use in bacteriological 

 work in the Hoagiand Laboratory, Brooklyn, N. Y. 



FACTORY AND MAIN OFFICE, 



631-543 NoKTH St. Paul Street, 



ROCHESTER, N. Y. 



P.O. DRAWER 1033. 



BRANCH OFFICE, 



F-ULXON BUILOINO, 



NEW YORK CITY. 



p. O. BOX 432. 



Entered tt tb« Poet Office at Washington, D. C, as Second-class Matt<^r. 



