Condensed Milk and Milk Powder 



253 



SPENCER 

 MICROSCOPE No. 20 H. 



The Ideal for Bactereological and 

 Research Work. 



ADVANTAGES: 

 Side fine adjustment — 2y 2 times 

 finer than any prism or lever fine 

 adjustment. 



Drop-swing Condenser Mounting. 



Black lacquered body tube, avoiding 

 reflections of light. 



Low compact construction affording 

 maximum ease and comfort in use. 



Large stage with long arm — un- 

 usual capacity. 



Spencer Standard superior optick. 



Spencer Microscope No. 20 H 



SPENCER MICROSCOPES 



ARE BUILT FROM THE 



Laboratory Worker's Standpoint 



There are incorporated in them many features of 

 practical usability, features which make for convenience 

 and comfort in use as well as efficiency and durability 

 which others do not have. 



SPENCER MICROSCOPES 



EXCELL IN 



I. Optical Superiority. 

 II. Mechanical Perfection. 

 III. Embodiment of Improvements Which Mark Them as Best 

 Adapted to Their Purpose. 



We are the only American manufacturers of microscopes making Apochro- 

 matic objectives. Ten years' experience in building side-fine adjustments. 



Bactereological Apparatus of All Kinds supplied. 

 Get Our Quotations. 



Spencer Lens Company 



BUFFALO, N. Y. 



