83 



Fig. 41. Stand P V (small Dissecting Stand). (V 2 Full Size.) 



B. Lens -Holders. 



Stand L I. 

 Large Lens -Holder. 



This lens-holder stands upon a heavy metal foot and has two hinged joints 

 b and c. It rotates on a vertical axis and is adjustable in elevation by means 

 of the rack and pinion movement d. The movement on the vertical axis is 

 arrested by the screw a and after adjustment both joints can be fixed simul- 

 taneously by turning the thumb-screw 6. Fig. 42. (See "Zeitschr. f. Instrkde.", 

 vol. XV, 1895, pp.322 323; also "Zeitschr. f. wiss. Mikrosk.", vol. XII, 1895, p. 318.) 

 No. 107: Lens-holder L I, without lenses Price: Marks 40. . Code-word: Patologico. 



Fig. 42. Stand L I (large Lens-holder). ('/, Full Size.) 



