324 KENNETH N. ATKINS 



ute. With these two exceptions the times of staining and 

 washing may be considerably increased or decreased with little 

 or no apparent change of result. 



The writer has received from Prof. C. E. Bolser, of the Chemis- 

 try Department of Dartmouth College, important suggestions 

 in this work and desires to express his indebtedness to him. 



REFERENCE 

 Gram, C. 1884 Fortschr. d. Med., 2, 18.5. 



