. The principles and practice of modern surgery. mixedwith the debris of the softened tissue,f Suppuration of the Cellular Tissue.—The successive steps in the form-ation of pus in this tissue are as follows: First, there is an effusion ofserum;—next, an effusion of fibrine, known by its faculty of coagulatingspontaneously; and this fibrine may be combined with more or less blood; * The second edition of this •work contained a tolerably copious account of the previoustheories of Home, Gendrin,.&c., on this subject; especially of Gendrins theory that pus mightbe formed of softened and disintegra
. The principles and practice of modern surgery. mixedwith the debris of the softened tissue,f Suppuration of the Cellular Tissue.—The successive steps in the form-ation of pus in this tissue are as follows: First, there is an effusion ofserum;—next, an effusion of fibrine, known by its faculty of coagulatingspontaneously; and this fibrine may be combined with more or less blood; * The second edition of this •work contained a tolerably copious account of the previoustheories of Home, Gendrin,.&c., on this subject; especially of Gendrins theory that pus mightbe formed of softened and disintegrated fibrine, and that pus globules are enlarged anddecolorized blood globules; but it did not seem worth while to repeat it in the present edi-tion, as the statement in the text seems pretty well established. t See Microscopical Journal for Jan. 1843, and Bemiett on Softening of the Brain, Ed. Surg. Journ., Dec. 1842. The foregoing cut represents the granules mixed with brokennerve-tubes; from a case of softening of the SUPPURATION. 71 —or pure blood may even be effused with it at the spots where the in-flammation is most intense. These effusions increase; the tissues becomedistended and broken down, and at last pus appears in the thin reddishmixture of serum and lymph with which they were infiltrated. It is atfirst dispersed in minute collections; but these soon communicate by thesolution of the intervening parts, and form a cavity termed an (in healthy inflammation) the lymph which is effused into theparts around the pus becomes organized and converted into a cyst or sac,•—which circumscribes the pus already formed, and may secrete freshquantities of it, or absorb some of it, according to circumstances. Mucous Membrane and Skin.—The mucous membranes, and the cutisdeprived of its cuticle, readily produce pus by a process of at first exude a thin serous fluid, which gradually becomes thickand opaque, and perfectly p
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