The Works of the Honourable Robert Boyle; In Six Volumes. to Which Is Prefixed the Life of the Author ...

The Works of the Honourable Robert Boyle; In Six Volumes. to Which Is Prefixed the Life of the Author ...

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1772 edition. Excerpt: ...that liquor, when upon the recess of the spirits and more volatile sulphurous parts, or else the new texture they make with the others, it degenerates into vinegar; and yet how little either diminution of quantity or any other alteration doth appear upon this change to the beholder's eye. And though no body is like to lose an experiment by mistaking vinegar for wine, because both those liquors and the changes of them are so familiar unto us; and because we are wont to taste each of them before we employ it; yet who knows what changes there may be in other bodies, with whose alterations we are unacquainted, though the eye, which is oftentimes the only sense employed about judging of them, discern no change in them? as may daily be observed in the superannuated seeds of plants, which, after their having been kept long beyond their due time, lose all their germinating power, without losing any of their obvious qualities. And here let me further observe to you, that urine is made much use of, not only by dyers, but several other tradesmen, in divers operations (some of which we may elsewhere have occasion to treat of) belonging to their professions. Now these men being wont indiscriminately to employ urine, without examining, whether it be rich in salt or not, and how long it hath been kept, it may not be impertinent to take notice, that chymists, who have occasion to distil it often in great quantities, assure me, that they find a notable disparity betwixt urines, that of healthy and young men abounding much more with volatile salt, than that of sickly or aged persons; and that of such as drink wine freely being much fuller of spirituous and active parts than that of those, whose drink is but beer or water. But because the differing more

Product details

  • Paperback | 170 pages
  • 189 x 246 x 9mm | 313g
  • United States
  • English
  • black & white illustrations
  • 1236952030
  • 9781236952035