Microtomes: their Choice and Use 



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and perhaps more. It is, unfortunately, impossible to adjust 

 the object in any precise direction when once fixed to the 

 plain object-holder. To remedy this defect the company 

 have introduced an orientating object-holder. In this the 

 cup to which the object is fixed moves in a horizontal and 

 vertical direction by means of a ball-and-socket joint. A 

 milled-head screw and a spiral spring control the vertical 



FIG. 58. R. AND J. BECK'S DELEPIXE MICROTOME. 



movement, the horizontal movement being effected by two 

 milled nuts ; these two movements, together with that 

 obtained by rotating the object-holder, allow the object to 

 be orientated very precisely. 



Another microtome, similar in principle to those just 

 described, has been devised by Mr. Hugh McLeake, of 



