CHAS. LENTZ & SONS 
meaical ana Biological stuaent's 
microscope 
AAB 
This microscope is the simplest Continental type microscope applicable to the 
student of medicine and general biology. It is of special importance as an in- 
expensive yet complete instrument of high-grade workmanship, for histological, 
pathological, embryological and urinary work, especially for college use. 
The base is of horseshoe form, of large size, and is nicely japanned. 
The pillar is of lacquered brass, with joint for inclination of the body — a 
necessity for prolonged work. 
The stage is of brass, oxidized, and with removable spring clips. 
The mirror bar swings for oblique illumination, and is provided with plane 
and concave mirrors. The fine adjustment is by micrometer screw, giving delicate 
movement with the highest powers. 
The draw tube is adjustable. 
It has revolving diaphragm, with openings of four different sizes, fitted on the 
under side of the stage. 
The objectives are the same as are supplied with the most expensive stand 
listed. 
AABl. With I eyepiece and | inch and } inch objectives $37 00 
AAB2. AABi and double nosepiece 42 00 
AAB3. With 2 eyepieces and f inch and | inch objectives 39 OO 
AAB4. AAB3 and double nosepiece 44 00 
AAB5. With 2 eyepieces and 2 inch, f inch and ^ inch objectives .... 45 00 
AAB6. AAB5 and triple nosepiece 52 50 
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