The laws and mechanics of circulation, with the principle involved in animal movement . Three cute of the Leech, showing the appearance before imbibition, during imbibition,and after imbibition. Fig. 15.—Appearance before imbibition. Fig. 16.—Appearance during imbibition ; I, oral sucker, expanded ; 2, wave of expan-sion passing along the body to the hinder portions ; 3, where they are added up inthe general expansion which takes place. Fig. 17.—Appearance after imbibition, and when the animal is fully gorged with bloodand further expansion is impossible. leech (Fig. 16, 1, 2), being merged in


The laws and mechanics of circulation, with the principle involved in animal movement . Three cute of the Leech, showing the appearance before imbibition, during imbibition,and after imbibition. Fig. 15.—Appearance before imbibition. Fig. 16.—Appearance during imbibition ; I, oral sucker, expanded ; 2, wave of expan-sion passing along the body to the hinder portions ; 3, where they are added up inthe general expansion which takes place. Fig. 17.—Appearance after imbibition, and when the animal is fully gorged with bloodand further expansion is impossible. leech (Fig. 16, 1, 2), being merged in the general expansion(3) which results. In other words, room is made for the foodas it progresses in the body ; otherwise the balance in pressurecould not be maintained, and the food would regurgitate. Andthis thing continues till the limit in expansion is reached, whenno more food can be taken (Fig. 17). And but for the fact that the internal and external parts arein correspondence, how otherwise could this action be pro-duced % Thus, the stomach, which extends nearly the wh


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Keywords: ., bookcentury1800, bookde, booksubjectblood, booksubjectrespiration