Part 35 (1/2)

Colorless iodine Chloride of lime Brown

Phenolphtalin Alkaline solution Red

Vanadiuallic acid Purple

The Patent Office at Washi+ngton, D C, forink wood From 1853 until 1878 it was furnished by the Antoines of Paris, of the brand termed ”Imperial;” in later years it was supplied by the Fabers

Since 1896 they have been using ”co facts elicited by the unrollland, in 1853, were coazine, by Dr Herapath

He says:

”On three of the bandages were hieroglyphical characters of a dark color, as well defined as if written with afluid had flowed more copiously than the characters required, the texture of the cloth had become decomposed and ses were genuine, and had not been disturbed or unfolded; the color of theink,' that I was induced to try if they were produced by silver With the blowpipe I immediately obtained a button of that metal; the fibre of the linen I proved by the ents, to be linen; it is therefore certain that the ancient Egyptians were acquainted with theit as a permanent ink; but as their solvent?

I know of none that would act on the metal and decompose flax fibre but nitric acid, which we have been told was unknown until discovered by the alchemist in the thirteenth century, which was about 2200 years after the date of thisas its superscription was read

”The Yellow color of the fine linen cloths which had not been stained by the e e fro There were, in soe, soo, but the tint was not so deep nor so equal as the work of the iven it in the skein

”One of the outer bandages was of a reddish color, which dye I found to be vegetable, but could not individualize it; Mr T J Herapath analyzed it for tin and alumina, but could not find any

The face and internal surfaces of the orbits had been painted white, which pigment I ascertained to be finely powdered chalk”

”I aainst this fire Do I shrink up”

--KING JOHN, v, 7

”With much ado, his Book before him laid, And Parchment with the sen, And with unwilling fingers tries his Pen; Soht he tries to pick, His Quill writes double, or his Ink's too thick; Infuse rown too thin, It sinks, nor can the characters be seen”

--Persius, translated by Dryden

INKS CALLED SYMPATHETICAL (Seventeenth Century)

”These operations are liquors of a different nature, which do destroy one another; the first is an infusion of quick-lime and orpin; the second a water turn'd black by nated with saturn

”Take an ounce of quick-lime, and half an ounce of orpin, powder and mix them, put your mixture into a matrass, and pour upon it five or six ounces of water, that the water ers breadth above the powder, stop your estion in athe matrass from time to time, then let it settle, the liquid becomes clear like common water

”Burn cork, and quench it in aqua vitae, then dissolve it in a sufficient quantity of water, wherein you shall have umm arabick, in order to make an ink as black as common ink You must separate the cork that can't dissolve, and if the ink be not black enough, add nation of saturn ar, distilled as I have shewn before, or else dissolve so much salt of saturn as a quantity of water is able to receive: write on paper with a new pen dipt in this liquor, take notice of the place where you writ, and let it dry, nothing at all will appear

”Write upon the invisible writing with the ink made of burnt cork, and let it dry, that which you have ill appear as if it had been done with common ink

”Dip a little cotton in the first liquor made of lime and orpin, but the liquor must be first settled and clear; rub the place you writ upon with this cotton and that which appeared will presently disappear, and that which was not seen will appear

ANOTHER EXPERIMENT

Take a book four fingers breadth in bigness, or bigger if you will: write on the first leaf with your ination of saturn, or else put a paper that you have writ upon between the leaves; turn to t' other side of the Book, and having observed as near as , rub the last leaf of the book with cotton dipt in liquor made of quick- lime and orpin, nay and leave the cotton on the place clap a folded paper presently upon it, and shutting the book quickly, strike upon it with your hand four or five good strokes; then turn the book, and clap it into a press for half a quarter of an hour; take it out and open it, you'll find the place appear black, where you had ith the invisible ink The sah a wall, if you could provide soht hinder the evaporation of the spirits

REMARKS

”These operations are indeed of no use, but because they are so, I hope the curious will not take it ill, that I ression