This historic book may have numerous typos, missing text or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1721. Not illustrated. Excerpt: ... Growth j therefore their Increase and Support is difficult, tho* not impossible, likewise aged People seldom or never void Worms by Stool, or otherwise; but Infants, or Children, whose Bowels are water'd with softer Juices, are chiefly subject to Worms; because those Juices are not so opposite for Nourishment. The same Aliment is also difficult, as well as the Stoppage of those little Worms in the Guts, by reason of the Quantity of Juices crowding in, and the continual carrying off the Faces by Stool, whence this minute verminous Off-spring is daily discharg'd; yet it is not impossible, because in the Foldings of the Guts, and the Cells of the Colon, or bottom of the Cacum or blind Gut, some Worms may remain, which being cherish'd by the Warmth and Heat of the Place, join'd to that of Moisture, becomes proper for their Nutrition and Increase. This being laid down, the greatest Difficulty proposed by Valisnerius, seems to be resolv'd: Nor can the Advocates of Leuwenhoeck shew, with greater Strength, why the first Seed of our Worms should be procured from constant Water-drinking. For altho' Leuvxnhoeck, in the first place, shews innumerable Quantities of small Worms swimming in those Waters; and in the next place fays, he hath found Worms in the Bowels of Fish, which are the same with the former, or of the same Kind; whence it follows, that Fislr being perpetually in Water, necessarily receive their Worms from the Water, neither can they have them elsewhere: If therefore that be the Original of Worms found in Fishes, what should hinder it from being the same of those Worms which are difeover'd in the Bowels of Men, Dogs, Cats, and other Animals, since Water is not only the common Drink of Fish, but of all Animals? What, because the Form is the fame of Wo...