Page:Letters on the Human Body (John Clowes).djvu/130





In some former letters on the wonderful mechanism and operations of the human body, I have confined my remarks to those parts of it which may be regarded as constituting its more external organization, such as its external form and external senses. Will you allow me now to call your attention to a more interior subject, by presenting to your view a slight sketch of the internal provisions made by the for the promotion of bodily health and of other uses, as they are discoverable in the astonishing acts of digestion, absorption, secretion, excretion, &c., of the several parts of food admitted by eating and drinking?

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