A treatise on the diseases of infancy and childhood . Fig. 4. 00 Fig. 1. The itch animalcule, acarus scabiei, viewed upon the back, showing its figure and the ar-rangement of its spines and filaments. The female, which is somewhat larger than the male, has alength of 1-SOth to l-60th of an inch. Fig. 2. The foot and joints of the leg of the itch animalcule. Fig. 3. The male itch animalcule, viewed upon the under surface, showing its legs and lobulated feet. Fig. 4. Ova of the itch animalcule. the female only, which burrows, making for itself a canal, orcuniculus, in which its eggs are de


A treatise on the diseases of infancy and childhood . Fig. 4. 00 Fig. 1. The itch animalcule, acarus scabiei, viewed upon the back, showing its figure and the ar-rangement of its spines and filaments. The female, which is somewhat larger than the male, has alength of 1-SOth to l-60th of an inch. Fig. 2. The foot and joints of the leg of the itch animalcule. Fig. 3. The male itch animalcule, viewed upon the under surface, showing its legs and lobulated feet. Fig. 4. Ova of the itch animalcule. the female only, which burrows, making for itself a canal, orcuniculus, in which its eggs are deposited. The male does notburrow, but conceals itself under the scales or crusts which resultfrom the inflammation produced by its partner, or it burrows onlysufficiently to produce a covering and shelter. From observationsmade by Eichstedt, Gudden, and others, the female has been foundwithin half an hour after being placed upon the skin to have con-cealed herself in the epidermis, and the cuniculus which she con-structs is arched and tortuous, and


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Keywords: ., bookcentury1800, bookdecade1870, booksubjectpediatr, bookyear1872