. The science and art of midwifery . subject, and in experi-ments made upon animals, septic poisons introduced into the systemfollowing or near delivery produce lesions similar to those found inpuerperal fever. As a further coincidence, it has been noticed that,as in puerperal fever, the lesions from direct septic poisoning havenothing characteristic about them, producing in one case pyaemia, inanother partial peritonitis, in another general peritonitis, in anotherdiphtheritis, while in others the lesions are comparatively trivial, thesedifferences being due to variable facta, such as the qual
. The science and art of midwifery . subject, and in experi-ments made upon animals, septic poisons introduced into the systemfollowing or near delivery produce lesions similar to those found inpuerperal fever. As a further coincidence, it has been noticed that,as in puerperal fever, the lesions from direct septic poisoning havenothing characteristic about them, producing in one case pyaemia, inanother partial peritonitis, in another general peritonitis, in anotherdiphtheritis, while in others the lesions are comparatively trivial, thesedifferences being due to variable facta, such as the qualities of theseptic poisons, the points of cutry into the organism, and the resistanceoffered by the invaded tissues! There Is nc experimental point of extreme practical importance inconnection with puerperal septicaemia—viz., that if the injection of a Septic fluid he made directly into a vessel, toxic effects speedily follow, hut are transitory, unless the amount of the fluid he large, >r its vim- PUERPERAL FEVER. 665. 666 DISEASES OF CHILDBED. lence exceptional, or the animal very young; whereas very smallamounts injected Bubcutaneously, by developing rapidly spreadingphlegmonous inflammation, resembling malignant erysipelas in man,arc capable, after a period of incubation, of producing fatal results; orthey may, if injected into a shul cavity or underneath a fascia, lead tothe development of an inflammation of an ichorous character. Jn otherwords, the eliminating organs suffice, under ordinary conditions to re-move from the blood an amount of septic fluid which would prove fatalif injected into the tissues. To produce similar results the injectionsinto the blood need to he repeated at intervals. This experience leadsus to the conclusion that, in the tissues, septic poisons pos>ess thecapacity of self-multiplication, and that from the local inflammationset up a supply is formed from which poisonous matter is continuouslypoured into the circulation. The capacity of sel
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