70 



For observing axial images with this stand the Axial-image Eye-piece, 



No. 177, or the analyzer without eye-piece should be iised. 



A polarizer, with condenser of 1,0 numerical aperture, and 2 analyzers are always 

 supplied with Stand IX b . 



If in addition to the 'polarizer a cylinder-diaphragm is required, this fact 

 should be duly noted on the order, because the cylinder-diaphragm, No. 39, is 

 not immediately interchangeable for a polarizer. The iris -cylinder diaphragm, 

 No. 4O, cannot in any case be used in conjunction with Stand IX b . 



Price : Code-word : 



No. 93: Stand IX b Marks 240. . Pastelero. 



Hand Microscope. 



We supply a hand microscope (Fig. 33) suitable for class demonstration. 

 The stage, with clips to hold the specimen, is fixed to the sleeve which receives 

 the body-tube. The instrument is focused by altering the position of the tube 

 in the sleeve and after adjustment securing it by a clamping ring. Fine adjust- 

 ment is effected by drawing the eye-piece, which fits into the tube with a certain 

 amount of spring, in or out as required. In using the instrument it is directed 

 by hand towards a window or lamp. 



No. 94: Hand Microscope ivithout objective ot Pnce: 



eye-piece, in pine box Marks 75. . Pastilla. 



Fig. 38. Hand Microscope. 



(Va Full Size.) 



The prices quoted above include only the stands in mahogany cases, without eye- 

 pieces, objectives and revolving nose-pieces. 



Suitable complete specifications are appended at the end of this cataloytic. 



