4G 



Microtomes and Microtome Knives (chap. 4) 



Figure 5. First set of strokes for microtome knife honing. 



with Diamantine — a small amount. A final stropping will finish off fine 

 serrations {Uber, 1936). 



Arthur H. Thomas manufactures a knife sharpener, the Fanz model, 

 using a revolving glass disc over which the knife is swept back and forth. 



Some pointers on the use and care of hones and strops may be of 

 help to beginners. Never apply oil to hones, only water and neutral soap 

 solution or Lava soap. Never allow the hone to dry while in use; always 

 keep it wet with water, or water plus soap. Two types of hones can be 

 used, a coarse one for fast grinding of the knife edge when the nicks are 

 deep, and a polishing hone to remove serrations and small amounts of 

 metal left by the preliminary honing. A yellow Belgian hone is one of 

 the best. 



Two patterns are followed, using the same number of strokes per 

 pattern. In Fig. 5 follow course #1, moving from bottom right to top 



