230 



Modern Microscopy 



tomy are to be striven for, such implements are not for a 

 moment to be compared with the more complex and solid 

 microtomes which we now have to consider. 



Schanze's Cheap Microtome. The cheapest of the 

 high-grade microtomes that we can recommend is by Herr 

 Schanze of Leipzig, illustrated in Fig. 57. This instrument 

 has the essentials of a true microtome, and will do good 

 work. The V-shaped tramway in which the knife-carrier 

 slides on three raised rails is 7 inches long (or larger 



FIG. 57. CHEAP MICIIOTOME BY SCHANZE. 



sizes may be obtained at increased cost). The jaws will 

 hold an object 1^- inches by f inch; the object can be 

 orientated and fixed in any required position. The micro- 

 meter screw is accurately constructed, and by means of a 

 large divided wheel and vernier the tenuity of the section 

 may be correctly registered. The instrument is con- 

 structed of polished steel and cast iron, and the price 

 is only i'2 15s. We shall presently describe other instru- 

 ments by this maker ; meanwhile we turn to the micro- 



