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(108
it is impossible but the liquor amnii must enter and pass through the whole alimentory passage along with them; as a fluid may certainly penetrate where hairs cannot."
   The first dung of calves after they are brought forth; which cannot be any thing but meconium, was examined with the same success; but embryo's, of the cow-kind, afforded no such circumstances by reason of their not having hair sufficient to float in the liquor amnii; nor did those of puppies & colts by reason of their hair being so firm to the skin, as scarce to pull any off with the thumb & finger. These facts seem to decide the controversy, and incontestably prove, that the liquor amnii is in a constant natural way received into the mouth, stomach, & intestines, and therefore must contribute to the nutrition of the foetus. Aldes, (a feigned name, under which Slade, an Amsterdam physician, conceals himself) mentions these facts in his [[underlined]] Epistola contra Harveium [[/underlined]] published in the first volume of the [[underlined]] Bibliotheca Anatomica [[/underlined]] of Magnetus and Le Clerc. And Swammerdam both mentions the facts & draws the conclusion, in [[underlined]] Biblia Naturae [[/underlined]] p. 319.

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[[left margin]] The lungs of a new-born animal sinks in water. [[/left margin]]

"After cutting out the lungs & heart" of the above mentioned calf, "I clipped off a piece of the former with sharp scissars, about an ounce weight, or more, & threw it into a bason full of water. It quickly sunk to the bottom, and settled there. Immediately after, I blew into the remaining part of the lungs, through the trachea; and though I could by that means distend them very little, because the air flowed out readily through the cut bronchia, and therefore acted but faintly on the other parts; yet a piece about the same bigness with the first, clipped off in the same manner, and thrown into the same bason, constantly kept at the top."

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[[left margin]] Upon the Sensibility & Irritability of the several Parts of Animals. By [[underlined]] Rich.d Brocklesby [[/underlined]] M.D. F.R.S. 
V. the postulatum on p. 95. [[/left margin]]

The substance of No. 38 of Vol. Ag. Part I. of the Phil. Trans. for 1755. p. 240.
   "The first experiment I propose to relate, was made by cutting four inches of a young lamb's skin, which covered the great tendon of the hinder leg, and is known to anatomists by name of the [[underlined] Tendo Achillis. [[/underlined]] This of course caused violent struggles, and other marks of the injury felt; and on touching the extremity of the skin, whilst united to other parts of the animal, it cried loud, urined, and voided its excrement, when I poured diluted spirit of vitriol upon the edges of the skin, that were fixed on the contiguous parts; but did not express much pain by irritating the raised skin, at the farthest extremity of its seperation, but an affusion of diluted spirit of vitriol. Nearer however to the fixed parts underneath, the sensation in the raised part of the skin continued much longer.
   I then made the butcher cut into the tendon halfway, and divide it upwards more than two inches, and attentively stood over the animal, to watch his motions, and discover if there was any apparent pain: but whilst that was doing, I could discern none, nor any marks of sensation in the animal, whilst I handled and pulled the cut tendon, nor yet any on touching it with diluted spirit of nitre, and sharp acid spirit of vitriol; and what yet surprised me more, was to find the creature as insensible upon the tendon, as if it was a mere piece of glue, when I put a strong muria of sea-salt and nitre all over it; and after a very few minutes I laid the raised part of the tendon in its natural direction, upon the correspondent fixed part, and they were both exactly congruous; so that the loose part had not contracted itself, nor was at all shorter, after these repeated trials, than its correspondent fixed part. I then put the creature on its legs, to see whether it had suffered so much, that it could not use the leg; but it was found to walk, though favouring greatly that side where so much had been done; however, it walked fairly on all its legs. After about five minutes torment, the butcher ended all its pains, and I performed the same processes on a sheep just destined to be slaughtered, in which I found all the appearances as above mentioned.  

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