No. 536] 



COLOR LXIILRITAXCK 



451 



tributing the skin admitted to me being "mixed." All 

 but one piece of mulatto skin were tested by the Bradley 

 color top before embedding. In only one case (No. 2) 

 conld the individual contributing negro skin be ques- 

 tioned by myself in regard to purity; the remaining 

 four pieces are so classified on the assurance of pathol- 

 ogist and surgeon. Four pieces were tested with the 

 color top. Sections were cut both in celloidin and par- 

 affin, and studied unstained and stained (with 1 12 oil 

 immersion lens) in carbol fuchsin or the hematoxylin 

 and eosin combination. The following is a list of the 

 specimens and the essential points of interest regarding 

 each : 



1. Pure negro; from postmortem by Dr. H. Marshall 

 (professor of pathology, University of Virginia) ; Zenk- 

 er's fixation; color (matched by mixing yellow, white, 

 red and black on the Bradley color top)— yellow, 4 per 



