45, COENHILL, B.C., AND 122, BEGENT STREET, W., LONDON. 263 



NO. 914. 



914 Negretti and Zambia's Student's Best Full-sized Monocular Microscope. 



Brass stand, with Mechanical Stage, Hackwork adjustment and Lengthening 

 Tube to the body, Fine adjustment for the Object Lens, sliding and 

 rotating Object Holder, and Diaphragm to the stage, two eye-pieces, A and 

 B, three Best Achromatic Object Lenses, 1-inch, ^-inch, and -inch, Polar- 

 ising Apparatus, with Selenite Plate, Spot Lens, Camera Lucida, 

 large Condensing Lens on Stand, two Live Boxes or Animalculae Cages, 

 Stage Condenser and Stage Forceps, plain and curved Brass Forceps, 

 Dipping Tubes, Stage G-lasses, &c., &c. ; in Solid polished Mahogany 

 Cabinet, with lock and key, fig. 914 25 



