| OCR Text |
Show es : Lea.II. Lea.I. the fire, before it comes to have thick fumes, it boyls up with a very great foame or froath 5 and is the only Gum or Rofiz (of the Eleven) that hath this property. So that I fufpect, there is a great quantity of © BA, Pot fome kind of volatile Spirit, which then flies away 5 and fo, in breaking through the Oyly parts, huffsthem up to fo greata froath, Of the QU ANT LIMES afforded by the Parts offe- veral Plants diftinétly calcin’d. Olibanumyields half a Drachm of Caput JMortuxm, SHALL nextfet down fome Tryals, upon one Part from the reft 5 in anfwer to thefe fuppofed Queries. Quer. 1. What Proportion doth the Lixivial Salt ofthe Pith or Pithy Part of a Plant, bear to that of the Fibrous, or of the Woody Part? Or whether is there a Fixed Salt always foundin either of them? A 52 50, It may alfo be noted, that Rofiz and Majftickh, feem to be more Cap. Ult. fufficient Azfwer to which, muft be built upon many Tryals. At prefent I fhall mention only Two; one upon Starch, anfwerable to the Pithy Parts; the other upon Flax, confifting almoft wholly of the Nervews or Tomy Fibres : of the Volatile parts whereof, chiefly, I have given fome accountin the foregoing Idea. 51, OF Starch, tbj yieldeth about tb} not of Afbes, but of Black Coal. purely Acidoleous Gums not only from their confiftence whichis uniform; and their Swell, which is lefs {trong and more pleafant: but alfo from the Acid Liquor they yield by Dy/fillation; and in that the young Leaus of Fir, and efpecially ofPine, are fowers and tis probable that thofe of Maffick are fo likewife. Whereby thefe, and other like Gums are more epecially fitted for the abovefaid purpofe. For though it be expofed in a Calcining Furnace to a vehement fire,for But Olibanum feems, befides its Acidity, to conten fome Volatile Alkaly, and fo to be an Acid-AlkalineGum, For as it hatha ftronger Swell than the former, foa hotter Taffes both the ordinary effe@s of an Alkaline Sulphur. And being infufed in feveral Menfiruums, appears to_conftift of two Bodies, one of them more Refizowsthan the other. 5 or 6 hours, which is longer then will ferve to calcine moft Bodies: yet would it not in the leaft part, be reduced to Afbes ; but to the laft continued (thoughthe fiercenefs of the Fire confumed part of it ) as black, as when it wasfirft burnt. So {trangely was the remaining part of the Sulphurfixed to the Earth; that in flying away, it did volatilize and carrythat away with it. In this Coal or Cinder, there is not the leaft of a Lixévialor other Taffe. And although, upon Tryal I find, That the Pith of many Plaats, as of aCabbage Stalk, will yield fome quantity of Lixivial Salt; yet it is probably, that generally, it yields lefs than the IVood. Of which, it is probable, that the one ismade by the Acid parts as the other by the Alkaline. Wherebyit is very well adapted in fome Ca/es, asina Pleurefie, for removing the Coagulations of the Blood, or its difpofition thereunto, Aja fetida yileds no lefs than half its weight or an Ounce of Capui Mort. that is 8 times asmuchas that of the other Gums, and 48 times OF Flax, tbj yields not above 50 Grains ofCaput Mortunm or white Afhes, which are Salt. According to vulgar conceit, it would feem to be very dry Body: yet of 153 parts, 152 are volatile, and being diftilled would have beencollected into Liquor. as much as that of fome of them. Yet doth it not contein one grain of Salt, fo far as can be judged by its Taft. Yet the Strength and Loathfonene{s of the Smell and Taft of the Gumm do argueit to be highly im- Hence alfo appears pregnated with fome kind of Volatile Alkaly proper toarreft thofe offenfive Vapours ( toufe the vulgar word) which flying, either by the Blood or Nerves, from part to part, do often prove fo trouble- the great and unexpected Variety in the Proportion of the Earthy Parts, as well as the other Prizciples of Bodies. Or elfe, that there are di- vers kinds of £arths, even in Plants, of which, as well as of Salts &c. fome are volatile. For of t6j of this Plat, there remaineth fixed but fome. Gum Arabickh yields one Scruple of Cap. Mort. whereof, by the 50 Grains: whereas ofi6j of Rhubarb, there will remain near 1920 Tafte, about 34 part is Salt. Grains, 7. e. 88 times as much as the former. Quer. 2. Euphorbium yields one Drache of Caput Mort. of which, by the {trength of the Taffe, two Scruplesfeem to be Salt, Which confirms In what proportion is the Lixivial Salt found in the Gums of Plants? and whether is it yielded, more or lefs, by all 2 Fox anfwer to which, I caufed the Eleven following, of each two Ounces, to be calcin’d, and fo obferved, That Common Rofia, yields but one Grain and 4 of Caput Mortuum. So that 16) will yield but 12 Grains. a former conjecture (2) of its being an Alkaline Gumm. (2) Ofthe Myrrh alfo yields a Drachm of Cap. Mort. and at leaft two Scruples Lufation of Salt, Ch. 1. Opium yields half a Drachm of Cap. Mort. whereof the one half the leaft particle of Salt, it being altogether infipid. is Salt. Mafiick yields gr. 12 of Cap. Mort. But notthe leaft part of Salt. the Of the Eleven, thefe two Gums have the greateft quantity of Bodies, ofa fixed Alkaly. In this Caput Mort. there is not Of this Rofiz, it is obfervable ; That being fet, in a Crucible, “— But it is to be noted, That the weightis encreafed bycertain little Spar-Stones,which in the burning offeveral parcels, [ always found mixed with this Gum. Thefe being picked clean out, the Cap. Mort. weigheth not much more than that of Maftick, And is in like manner infipid, when the faid Stones are picked out. From hence it appears, how proper thefe Gums are for the Concottion of Salt Rheums 5 according to what I have formerly fuggefted Difcour/é from another Experiment. ofMixture of a Plant, as well Organickh , as Content, feparated §. of Plants. Aloe yields a Drachm of Cap. Mort. conteining about one Scruple of , Salt. Qq2 Scammony |
