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Also having made the Red, and consequently the Blew Tincture very Transparent, and suffer'd it to rest in a small open Vial for a Day or two, we found according to our Conjecture, that not only the Blew but the Red Colour also was Vanish'd; the clear Liquor being of a bright Amber Colour, at the bottom of which subsided a Light, but Copious feculency of almost the same Colour, which seems to be nothing but the Tincted parts of the Rose Leaves drawn out by the Acid Spirits of the Oyl of Vitriol, and Precipitated by the Volatile Salt of the Spirit of Urine, which makes it the more probable, that the Redness drawn by the Oyl of Vitriol, was at least as well an extraction of the Tinging parts of the Roses, as a production of Redness; and lastly, if you be destitute of Spirit of Urine, you may change the Colour of the Tincture of Roses with many other Sulphureous Salts, as a strong Solution of Pot-ashes, Oyl of Tartar, &c. which yet are seldome so free from Feculency, as the Spirituous parts of Urine becomes by repeated Distillation.
And to vary the Experiment a little, I try'd, that if into a Glass of Rhenish Wine made Green by this Essence, I dropp'd an Alcalizate Solution, or Urinous Spirit, the Wine would presently grow Turbid, and of an odd Dirty Colour; But if instead of dissolving the Essence in Wine, I dissolv'd it in fair Water sharpen'd perhaps with a little Spirit of Salt, then either the Urinous Spirit of Sal Armoniack, or the solution of the fix'd Salt of Pot-ashes would immediately turn it of a Yellowish Colour, the fix'd or Urinous Salt Precipitating the Vitriolate substance contain'd in the Essence.
But as for the Operation of the other sorts of Salts upon these Red Substances, I found it not very Uniform, some Red, or Reddish Infusions, as of Roses, being turn'd thereby into a dirty Colour, but yet inclining to Green. Nor was the Syrrup of Clove-july-flowers turn'd by the solution of Pot-ashes to a much better, though somewhat a Greener, Colour.
And something of Kin to this change of Colour in Vegetables is that, which Chymists are wont to observe upon the pouring of Acid Spirits upon the Red Solution of Sulphur, dissolv'd in an Infusion of Pot-ashes, or in some other sharp Lixivium, the Præcipitated Sulphur before it subsides, immediately turning the Red Liquor into a White one.
From these countries, particularly from Eastland and Poland, that is, the countries on the south shore of the Baltic, Antwerp receives wheat and rye to a large amount; iron, copper, brass, saltpetre, dye-woods, vitriol, flax, honey, wax, pitch, tar, sulphur, pot-ashes, skins and furs, leather, timber for ship building, and other purposes; beer, in high repute; salt meat; salted, dryed, and smoked fish; amber in great quantities, &c."
"Just arrived on board the brig 'Boscawen, Alexander Caine, Master from Ireland, a number of likely, healthy, men and women Servants; among whom are Taylors, Barbers, Foiners, Weavers, Shoemakers, Sewers, Labourers, etc., etc., whose indentures are to be disposed of by Cauldwell & Wilson, or the master on board the Vessel off Market Street Wharff Said Cauldwall & Wilson will give the highest prices for good Pot-Ashes and Bees-Wax."
But, you must have a care to drop in a competent Quantity of Oyl of Tartar, for else the Colour will not be so Deep, and Rich; and if instead of this Oyl you imploy a clear Lixivium of Pot-ashes, you may have an Azure somewhat Lighter or Paler than, and therefore differing from, the former.
A scar, an axe, a sword, a pink'd doublet, a rusty helmet, a pound and a half of pot-ashes in an urn, or a three-halfpenny pickle pot but above all, a tender infant royally accoutred. Tho' if it was too young, and the oration as long as Tully's second Philippick it must certainly have beshit the orator's mantle.
Charles Merret. Annot. But in regard that 'tis Principally the Alcalizate Salt of the Pot-ashes, which enables the water to Extract so powerfully the Tincture of the Decocted Vegetables, I fear that our Author may be mistaken by supposing that the Decoction will alwayes be of the very same Colour with the Vegetable it is made off. Annotation III. Annotation IV.
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