80, SUMMARY OF CURRENT RESEARCHE« RELATING TO 



is an obvious advantage. Longitudinal sections of small woody stems 

 are readily cut in this modified hand microtome, whereas their small 

 diameter makes it very difficult to secure them firmly in the original 

 apparatus. As may be seen, it is possible to orient material to obtain 

 all angles in the case of sections to be cut obliquely or in the case of 

 unsymmetrical material. 



The original modification from which the drawing was made has 

 been somewhat improved recently. The knurled heads hh should be 

 much larger than those illustrated, and for woody stems the leaves of the 

 material holder should be thicker and their inner surfaces more nearly 

 flat. A. N. D. 



