OCR Text |
Show 274 ‘ The Colours Led. V. of Plants 6. §. I fay therefore, that in Blems, Purples and efpecially Reds, the predominant Principles being Sulphur and Acid, the Oyl either ab- {tracts the Su/phur of it felf, or at leaft, unlocks it from the Acid Parts; whereby both of them are beftowed {eperately to their like parts in the Oy; upon which their difunion the Colour vanifhes : that depending, not upon either of them alone, which of themfelves are Colourlefs, but upon both united together. 7. §. Onthe contrary, a Gree Colour not depending on a preant Acid, but an Alkaly, or fome Saline Principle different from an Acid this will not foealiely be imbibedfeparately,into the Pores of the oy!, but only by mediationoftheir Sulphur, Sothat being both imbibed without anydifunion, theyftill retein the fame green Colour they had before in the Plant. 8. §. Hencealfo it is, that red Rofés being dryed and infufed fome time in Oy! of Axife Seeds, a more potent Memfirunm than Common Oy! 5 they wholly lofe their own Colour, and turn white; the Oy! remain- ingLiwpid, as at the firlt, That isthe Sulphur or that part of it on 1 cheifly the Red depended, is abforbed feparately by the Oy/, and fo the Colour vanithes. g. §. A SECOND Menfiruum! made ule of, was Water. And Firft, Alkanet Root, which immediately tinéures Oy! with a deeper Red, will not colour#ater in the leaft. to. §. Next itisobfervable, That Water will take all the Colours of Plants in Infulfon except a Greez. So that as no Plant will by Infulion give a perfect Blew to oyl3 fo their is none, that I know of in the faid spirit, and the spirit {till remaining in a manner Limpid, and void ofthe leaft Ray of Blew; if you drop into it a little Spirit of Sulphur, it is fomewhat forprizing to fee, that it immediately ftrikes it intoa full Red, as if it had been Blew before: and fo, if you drop Spirit of Sal Armoniac or other Alkaly upon it, it prefently {trikes it Green. Which furtherconfirms what have been before faid of the CaxJes of Vegetable Colours. 14. §. Itis alfo obfervable, That the Green Leaves of Baw, which give a Mufcadine Red, with fome Rays of Claref, to Water, gives a pure and perfect Greex to Spirit of Wine: and is the only Plant of all that I have yet tryed, which doth thelike. 15. §. It is likewife to be noted, That both Yellow and Red Flowers give a ftronger and fuller Tzwéure to Water, than to Spirit of Wines as in the Tindfures of Comflip, Poppys, Clove-Fuly-Flowers and Rofes, made both in Water and spirit of Wine, and compared together, is eafily feen. So that for Tinéfures made with Flowers,whether for Medicines,or other purpofes, Water,withrefpect tothe Colour, is the better Menftrunm. 1 fay for Tindures made with Flowers; for there are fome other Parts, efpecially Gumms, as Gamboja, Myrrh and Aloes, whichgive their Iz#ures full and clear, only to Spirit of Wine. Some of which are ufed by Leather-Gilders, and others, for the wafhing over of Silver, fo as to give it the Colour of Gold. of Plants asthey appear upon Infufion. Thus far of the Colours which, by Infufion will give a perfect Green to Water. 11. §. Butalthough the Gree Leavs will not give their aiffble Colour, byInfufion in Water 5 yet they will give moft other Colours, as well as the Flowers themfelves. So the Green Leavs of Cinguefoyl, G ALPS give a Tzzdure no higher than to refemble Rhenifh wine; thole of Ayffop, Canary 5 of Strawberrey, Malaga; of Mint, MuJcadine; of Wood-Sorrel, Water and fome drops of Claret; of Blood-wort, Water and a dafh of Claret ; and thofe of Bawm make a Tin@ure near as red as ordinary Claret alone. All Aromatick hot Plants, give a yellow-red Tindure, or colorem ex luteo rubrum. A\\ Plants with a yellow Flower give either a pale citrine or yellowifh Tindure ; and the like. Yetall Of the COLOURS of Plants produced by their Mixture with other Bodies. give not their I7xéure in the fame fpace of times fome requiring a fortnight, others a week, othersfive, three or two days, and fome 2 predominant Colour, asa veil {pred over them, conceils all the reft. But pafling on into the Flower, where the Aer-Veffels, as is aforefaid, are under the dominion of the Lympheduétss they thew themfélves 2 12. §. of Wixe. A THIRD and the laft Menffrunm1 made wie of, was spirit And here it is to be remarqued; That as Oy/ rarely takes a Red, there being bat one known Inflance of it 5 nor Water, a Green: So neither Spzrit of Wine, a Blew. I have tryed with feveral Llew Flowers, as of Lark-heel, Violet, Mallows, Burrage, and others, whereof it will not take the lealt Tinéture. ,13:_§- Again though no Blew Flowers, that I knowof, will givea Biew Tintfure to Spirit of Wine: yet having beenfor fome days infufed in HE laft general Enquiry propofed to be made, * but one, or halfa day. From hence it appears, that the Colours of moft Flowers are begun in the Leauss only Greew being therein the diftindly. 20 was this, After what manner they would exhi- bite themfelves upon the Mixture of thofe Infiions, or of any one of them with fome other 3 Liquor. » 2. §. A ftrong Infufion, or the Fuyce of the Leavs of Rofe-Tree, Rafpis, Strawberry, Cynquefe foyle, Goosberry, Primrofe, Ferufalen Comflip, : Bearfeare, Bearsfoct, Peony, Bistort, Lawrel, Goats-beard, droped upon Steel, make a Parple Tinéture. But that of Vine Leaves {carce maketh any Tinédure at all... So that there is fomething elfe befides Sowerne/s concurring to the Purple upon Steel. 3. §. Saccharum Saturni droped on a Tin@ure of Red Rofes, turneth it to a faint pale Green. 4. §. Salt of Tartar droped upon the fame Tinéure, turneth it to a deeper Green. S{2 |