to mix more equally with the Fluid, and with that to make one Pulpament, or chylous Mass. And Hippocrates, tho' he does not plainly call it an Elixation, yet seems to attribute the Concoction of the Food to the Heat of the Stomach, as the Cause of it, Sect. 4. Libro de salubri victus ratione. So where he takes notice of the voiding of such Fæces, as appear to be like the Food that has been eaten; he adds, Constat enim, sane ventriculum, ciborum copiam, ut concoquat, calefacere non posse. And there are other Passages in the same Book, from which we may conclude, that he suppos'd the Heat of the Stomach to be the great Cause of the Digestion of the Food.
There are others that make the Stomach itself to be the great Instrument of Digestion, but in a different manner: And they suppose it to be perform'd by an Attrition, as if the Stomach, by those repeated Motions, which are the necessary Effects of Respiration,