OB? e : General Notes. 
len” which lie in groups similar to the follicles of the ani 
spleen, between the arteries entering and the veins leavin 
spleen on the periphery, undergo significant changes, norma 
in the course of the winter, under the influence of pilocarpin 
a few hours, The result in both cases was the same. The“ 
menzellen,” at first rich in pigment, lose their pigment as the 
ber of undeveloped corpuscles increases. At the same time 
number of corpuscles in the circulating blood was counted, 
result showing that as the pigment of the “ammenzel 
remains to be considered. The blood-vessels of the em 
have their origin, as the embryologists have taught us, in 
mesoderm in chains of endothelial cells which contain C 
