1893.] Anatomical and Physiological Researches. 105 
These data can very easily be verified, and they are very 
instructive. Another question is, whether the ‘‘active albu- 
men” isin any way connected with the ‘‘vital power” itself, and 
if we have here a reaction, from which we may judge whether 
life is present or not. The aldehyde theory, when employed 
here, can explain the vital power, but it seems a little incom- 
prehensible that the vital power should merely be based upon 
chemical processes. Still, whether the theoretical deductions 
ae provable or not, we have in Loew and Bokorny’s investi- 
gations a very important contribution to cellular physiology. 
_ Inspite of the many efforts to the contrary, the dcor is be- 
ing gradually o 
Logical 
only one kind of life 
ings. "—J, CHRISTIAN Bay. 
the fluid excreted by fully developed insec- 
the process of digestion does not begin 
f excretion of the digestive solution and _ 
a suffici icro-organisms 
fe present: thee th lent number of micro-org 
r 
ginning o 
is hardly to be anticipated, the 
© power of these plants together with 
“Acta 
H . . 
orti Petropolitani XH, I~Ig, 
