A new digester or engine for softening bones, containing the description of its make and use in these particulars: viz, cookery, voyages at sea, confectionary, making of drinks, chymistry, and dying. With an account of the price a good big engine will cost, and of the profit it will afford / [Denis Papin].

  • Papin, Denis, 1647-1714.
Date:
1681
Catalogue details

Licence: Public Domain Mark

Credit: A new digester or engine for softening bones, containing the description of its make and use in these particulars: viz, cookery, voyages at sea, confectionary, making of drinks, chymistry, and dying. With an account of the price a good big engine will cost, and of the profit it will afford / [Denis Papin]. Source: Wellcome Collection.

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    V& % Kew T)igejler. and when we have occafion to ufe it, we muft diffolve fotne of it with three or four drops of clean water to wet the brims of the glafs, and then joyn them, as before, as exa&ly as we can : the fame may be applied to China* difhes, Ivory, Amber, and fuch other brittle bodies. »• vx ... r . \ E X P E R I M. VI. July i- I filled two glafs-pots, the one with one ounce of fhavings of Harts-horn and two ounces of water, the^ other with an ounce of Whitings bones and two ounces of water. Having continued the fire till the drop of water would dry away in 7 feconds with the inward preflure twelve times ftronger than the ordinary preffure of the Air I took off the fire prefently, and the Veffels be¬ ing cooled, l found a very ftrong gelly in the Pot with Harts-horn: I gave fbme of it to a perfon that makes fuch Gellies pretty often, and the faid that there muff be lomething more in this than in hers, bccaufe this hact both fmell and tafte pretty ftrong =, but in hers there was neither of them. I think this oifference did proceed only from the Spirits and volatile Salts that are kept in by means of the Engine faftned with Screws, and that ffy away in the ordinary boiling: and from thence it is very probable, that this new gelly hath much more virtue in it. The Harts-horn alfo was all very foft; but in the or¬ dinary way it is brought but to a powder that feels hard between the fingers. In the other Pot the fifi-bones were quite Joft, but tie liquor would not congeal.: yet being dryed, there was found fome glue remaining, but in fmall quantity, and not f> firong as that of Beef bones. E X P E R I M. VII. July 2. I filled two glafs-pots, the one with halfian- ounce of Harts-horn and two ounces and half of water, the other with bones and water in the fame proportion as five to one, and the bones were fhaved as well as the Harts-horn. Having augmented the fire till the drop of water