20 



MICROSCOPICAL RESEARCH 



may be made in this way, and the blocks placed in the stock-jars, 

 where they can remain indefinitely. The specimens to be cut must in 

 all cases be imbedded in the well of the microtome in such a manner 

 that the section-knife shall pass through the exact zone of tissue 

 required for examination. 



B. 



Fig. 12. — Paraffin bath with tripod and bunsen. A. Vertical section. 



B. Imbedding or moulding tubes. 



