15. Microscope [" Student's "], with tripod stand ; long 

 tube, inclinable; coarse adjustment by rack and pinion ; 

 fine adjustment by micrometer screw ; stage with a 

 movable piece sliding up and down ; revolving dia- 

 phragms; plane and concave mirror; one eye-piece; 

 condenser on separate stand. 



Exhibited by J. ParTces & Son. 1882. Price (complete) 



31. 10s. 



16. Microscope [" Student's "], with horse-shoe stand ; 

 short tube, inclinable ; coarse adjustment by sliding 

 tube ; fine adjustment by micrometer screw ; plain stage ; 

 revolving diaphragm ; double mirror ; one eye-piece ; 

 two objectives ; in mahogany case. 



Exhibited by J. Swift '$ Son. 1880. Price 31 3s. 



17. Microscope with horse-shoe stand ; long tube, not 

 inclinable ; coarse adjustment by sliding tube ; fine 

 adjustment by micrometer screw ; simple stage ; revolv- 

 ing diaphragms ; plane and concave mirror ; two eye- 

 pieces ; ^th in. objective ; mahogany case in Hartnack 

 pattern. 



E. 237. 1877. Made by Seibert $ Krafft, Wetzlar. 



18. Microscope ["Educational"], with horse-shoe 

 stand ; long body, inclinable ; coarse adjustment by rack 

 and pinion ; fine adjustment by micrometer screw ; stage 

 with two parallel magnetised steel bars fixed in it, upon 

 which rests an iron cross-piece so that it will remain 

 steady and retain the slide in any position in which it 

 may be fixed ; revolving diaphragm ; plane and concave 

 mirror; one eye-piece; no objectives shown ; stage con- 

 denser. 



Exhibited by J. ParJces fy Son. 1882. 

 Price (complete) 51. 5s. 



19. Microscope [" Histological"], with tripod stand; 

 short tube, inclinable ; coarse adjustment by rack and 

 pinion ; fine adjustment by micrometer screw ; plain 

 brass stage ; revolving diaphragm ; concave mirror ; 

 one eye-piece; 1 in. and Jin. objectives. 



Exhibited by G. Collins. 1881. Price 51. 10*. 



20. Microscope [" Museum"], with horse-shoe stand ; 

 short body, with draw tube, inclinable ; coarse adjust- 

 ment by sliding tube ; fine adjustment by micrometer 

 screw 5 "plain black stage ; revolving diaphragms; small 



