United States or Laos ? Vote for the TOP Country of the Week !
And divers other Bodies may the Same way be Dy'd, some of a Black, and others of a Blackish Colour. See the latter end of the fiftieth Experiment. And as Metalline, so likewise Mineral Solutions may produce Colours differing enough from those of the Liquors themselves. But I see this Treatise is like to prove too bulky without the addition of further Instances of this Nature.
And though you rubb Blew Vitriol, how Venereal and Unsophisticated soever it be, upon the Whetted Blade of a Knife, it will not impart to the Iron its Latent Colour, but if you moisten the Vitriol with your Spittle, or common Water, the Particles of the Liquor disjoyning those of the Vitriol, and thereby giving them the Various Agitation requisite to Fluid Bodies, the Metalline Corpuscles of the thus Dissolv'd Vitriol will Lodge themselves in Throngs in the Small and Congruous Pores of the Iron they are Rubb'd on, and so give the Surface of it the Genuine Colour of the Copper.
And though this seem'd not easie to be perform'd by reason of the Difficulty of finding Metalline Solutions of the Colour requisite, that would mix without Præcipitating each other; yet after a while having consider'd the matter, the first Tryal afforded me the following Experiment.
Chancing to meet with one of his acquaintance at a certain coffee-house, the discourse turned upon the characters of mankind, when, among other oddities, his friend brought upon the carpet a certain old gentlewoman of such a rapacious disposition, that, like a jackdaw, she never beheld any metalline substance, without an inclination, and even an effort to secrete it for her own use and contemplation.
The fundamental principle of alchemy was the natural process of development of metalline bodies.
Word Of The Day