The principles of surgery . at which is of mucous character and protective of the healingby growth. If by art we would induce the process, we must similarlyinvest the surface to the exclusion of air, either by artificially forminga crust—as by light application of the nitrate of silver—or by adaptingsome suitable mechanical substitute. By Collodion,1 coagulated on thepart in a thin stroma of cotton or lint, an admirable protection may beobtained; very adherent, quite impermeable, and (saving the smart ofapplication) painless. ^ The preceding modes of cure are painless, or nearly so; effected b
The principles of surgery . at which is of mucous character and protective of the healingby growth. If by art we would induce the process, we must similarlyinvest the surface to the exclusion of air, either by artificially forminga crust—as by light application of the nitrate of silver—or by adaptingsome suitable mechanical substitute. By Collodion,1 coagulated on thepart in a thin stroma of cotton or lint, an admirable protection may beobtained; very adherent, quite impermeable, and (saving the smart ofapplication) painless. ^ The preceding modes of cure are painless, or nearly so; effected bysimple organization of plastic material, either within or without the cutsurface ; inflammation is wholly absent; there is no formation of pus ;there is no waste of the plastic material, all is employed in the purposesof repair ; a thin serous fluid exudes, and that in sparing quantityExclusion of atmospheric air, from the cut surface, is essential to them 1 A solution of gun-cotton in sulphuric ether. GRANULATION. 177. Fibroplastic and fusiform cells from re-cent exudations on the pericardium. Simi-lar cells are found in granulations.—Ben-nett. all ; in the first, this is effected by accurate and constant coaptation ofthe wound ; m the others, by a suitable investment of the part, eitherof natural or artificial construction. _ 4 Healing by Granulation, or union by the second intention. Thisis tlm usual_ mode of healing in ulcers; and also in wounds of the sur-face involving much loss of substance, and consequently followed bymore or less inflammation. The first and most essential step towardsrepair, is subsidence from the true inflammatory acme. Suppurationcontinues, but with this difference: that whereas previously all theexuded liquor sanguinis degenerated into pus, and was extruded, itsfibrin being rendered altogether aplasticby the coexistence of true inflammation,now only a part so degenerates and passesoff; a plastic portion remains incorpo-rated with and superadd
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