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society meetings. 
(a) The inflammatory stasis, owing to its very intensity, to pre-existing de¬ 
bility of the diseased textures, or lastly to weakening influences caused during 
its progress, degenerated into absolute stasis. 
(5) It occasions gangrene by the crushing effect of its products upon the 
capillaries, or by mechanical or ulcerous isolation of the textural parts. In this 
way gangrene may arise in tissues laboring under the sequel* of inflammation, 
without itself being an issue of the latter. 
2. Cold gangrene, sphacelus.—This form is not in any way connected with 
inflammation. 
Fourth .—Moist gangrene comprises the breaking down of fluid substances 
to gangrenous ichor and of fibrous textures to a various colored diffluent pulp, 
marked by the evolution of foetid gases. It is the gangrene developed out of ab¬ 
solute blood stasis; therefore, again, inflammatory gangrene. It may be com¬ 
pared to the decomposition of animal matter under the co-operating influence of 
water. 
Fifth. —Dry, mummyfying and senile gangrene are the various terms desig¬ 
nating this form of gangrene, which is caused by a deficient supply of blood. 
It manifests itself in the perishing of the implicated structures, with shrivelling 
or withering thereof to an incipiently tough, but eventually sloughing mass. Often 
and particularly in the extremities, owing to impermeability of their arteries, the 
gangrenous textures blacken; as such it is comparable to the decaying of organic 
matter with an insufficiency of moisture, and with the disengaging of pure 
carbon. 
Sixth .—Black gangrene—Gangrenous slough. 
Seventh .—White gangrene occurs for the most part, as a result of pressure 
in incarceration of the denuding of membranous expansions of their subjacent 
textures, for example, as peritoneal sloughing at the base of intestinal ulcers. 
Of these different varieties of gangrene, several are often present at the same 
time. Beneath the common integuments, often transformed into a swarthy, 
parched rind, in senile gangrene we often meet with patches of tissue which are 
reduced to humid, stinking pulp. 
Just as in gangrene of solids, gangrenous slough varies, so in like manner does 
gangrenous ichor, as necrosed blood or exudates vary, according to the crasis or 
constitution under which either has become attacked with gangrene. 
Like normal textures, diseased textures and new growths, fibroid, cancerous 
formations, for example, may become a prey to gangrene. Neither to ulceration 
or gangrene are all textures alike obnoxious. Bony, elastic fibrous textures re¬ 
sist gangrene more ably than muscle. Areolar tissue, or mucous membrane, lax 
embryonic textures, like certain varieties of cancer, are especially prone to gan¬ 
grenous destruction. 
The constituent elements of gangrenous texture masses are more or less well 
preserved textural debris, larger or smaller black contoured molecules, down to 
pulverulent granular mass, black pigment granules, fat drops and crystals. 
Contact with the atmosphere is by no means indispensible to the generation 
of gangrene. It affects equally with the external parts, organs never in con¬ 
tact with the air, as the liver and spleen. 
A very important phenomenon involving a curative act, is the circumscrip- 
