296 The Botanical Gazette. [May, 
zation phenomena, a granulation pointing to precipitates in the 
protoplasm, and a rigor, without any considerable contrac- 
tion. It is this which has made them useful as fixing reagents 
in microtechnique. Alkalies and alkaloids disorganize by 
producing an abnormal solubility of the constituents of the 
protoplasm, so that it becomes vacuolated like a mass of foam, 
thus resembling in effect electric currents. 
With hydrogen peroxide an extremely fine fibrillar struc- 
ture of the plasma was produced, the fibrils mostly running 
lengthwise, a few traversely, and either ending free or joined 
into anetwork. Even the nucleus appeared not simply gran- 
ular but like a coil of fibrils. The metallic salts produced no 
et irre i fer 
y gular contraction, collapse, never apes On th 
ness 
. ive 
The more harmful, whether on quantitative or qualitati 
