A Selection of Curious Articles From the Gentlemans Magazine volume 3
A Selection of Curious Articles From the Gentlemans Magazine volume 3
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In our eReader you can find the full English version of the book. Read A Selection of Curious Articles From the Gentlemans Magazine volume 3 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book A Selection of Curious Articles From the Gentlemans Magazine volume 3
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Method for preparing a liquor that will sink into and penetrate marble; so that a picture drawn on its, surface, will appear in its inmost parts.
TAKE of aqua-fortis, ancTaqua-regia, two ounces of each ; of sal-ammoniac, one ounce ; of the best spirit of wine, two drachms; as much gold as may be had for four shillings and six-pence; of pure silver, two drachms. These materials being provided, let the silver, when calcined, be put into a vial; and having poured upon it the two ounces of aqua- fo...rtis, let it evaporate, and you will have a water yielding first a blue, and afterwards a black colour: likewise, put the gold, when calcined, into a vial, and having poured the aqua-regia on it, set it by to evaporate ; then pour the spirit of wine upon the sal-ammoniac, leaving it also to eva^ porate; and you will have a golden-coloured water, which will afford divers colours. And after this manner, you may extract many tinctures of colours out of other metals: this done, you may, by means of these two waters, paint what picture you please upon white marble of the softer kind, renewing the figure every day for some time with some fresh superadded liquor; and you will find that the picture has penetrated the whole solidity of the stone, so that cut- ting it into as many parts as you willj it will always repre- sent to you the same figure on both sides.
What to read after A Selection of Curious Articles From the Gentlemans Magazine volume 3?
You can find similar books in the "Read Also" column, or choose other free books by John Walker to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Method for preparing a liquor that will sink into and penetrate marble; so that a picture drawn on its, surface, will appear in its inmost parts.
TAKE of aqua-fortis, ancTaqua-regia, two ounces of each ; of sal-ammoniac, one ounce ; of the best spirit of wine, two drachms; as much gold as may be had for four shillings and six-pence; of pure silver, two drachms. These materials being provided, let the silver, when calcined, be put into a vial; and having poured upon it the two ounces of aqua- fo...rtis, let it evaporate, and you will have a water yielding first a blue, and afterwards a black colour: likewise, put the gold, when calcined, into a vial, and having poured the aqua-regia on it, set it by to evaporate ; then pour the spirit of wine upon the sal-ammoniac, leaving it also to eva^ porate; and you will have a golden-coloured water, which will afford divers colours. And after this manner, you may extract many tinctures of colours out of other metals: this done, you may, by means of these two waters, paint what picture you please upon white marble of the softer kind, renewing the figure every day for some time with some fresh superadded liquor; and you will find that the picture has penetrated the whole solidity of the stone, so that cut- ting it into as many parts as you willj it will always repre- sent to you the same figure on both sides.
What to read after A Selection of Curious Articles From the Gentlemans Magazine volume 3?
You can find similar books in the "Read Also" column, or choose other free books by John Walker to read onlineMoreLess
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