PRICES OF STANDS 



FOR 



ACHROMATIC MICROSCOPES, 



Exclusive of Object-Glasses, Apparatus and Cases, 



EXCEPT WHERE MENTIONED. 



[The construction of all these Microscopes is now so arranged, that 

 Smith and Beck can supply any apparatus without requiring the 

 Instrument for fitting .'\ 



£ s. d. 



No. 1. Improved large Microscope, the limb continued 

 under the stage, and with cylindrical fitting and 

 rackwork, for applying all illuminating apparatus 

 with ease and accuracy, mounted on two pillars 

 and cones, with revolving base to tripod; body 

 with quick and slow motions, graduated sliding 

 tube, and two eye-pieces; stage half inch thick, 

 with vertical and horizontal actions (given by rack- 

 work and screw, or lever), sliding and revolving 

 planes, and spring clamping piece ; diaphragm 

 with revolving and removeable fittings ; large plane 

 and concave mirrors, with lengthening arm, and 

 shding on a triangidar bar; pliers, joint and for- 

 ceps, and two glass plates 22 



No. I. Improved large Microscope, on exactly the same con- 

 struction, but made very portable 25 



No. 2. Improved smaller Microscope, on the same principle, 

 and with the same actions as No. 1, but with single 

 pillar, on tripod stand 18 



No. 2. Improved smaller Microscope, made portable 21 



No. 3. Best Student's Microscope, with uprights and joints, 

 quick and slow motions to body, graduated shding 

 tube, and two eye-pieces ; thin stage, with vertical 

 and horizontal actions by rackwork, sliding and 

 revolving planes, and spring clamping piece ; dia- 

 phragm with revolving and removeable fittings; 

 double mirror, with lengthening arm ; pliers, for- 

 ceps, and two glass plates 12 12 



No. 4. Best Student's Microscope, the same as No. 3, but 

 with plain stage, consisting of sliding piece and 

 clamping spring, one eye-piece, and single concave 

 mirror 8 8 



