Isaac Newton, To make excellent ink

Isaac Newton, To make excellent ink 13 To make excellent Ink. ℞ 1/2lb of Galls cut in pieces or grosly beaten, 1/4 ℔ of Gumm Arabick cut or broken. Put 'em into a Quart of strong beer or Ale. Let 'em stand a month stopt up, stirring them now & then. At the. end of the moneth put in ℥1 or ℥1 1/2 of copperas (Too much copperas makes the ink apt to turn yellow.) Stir it & use it. Stop it up for some time with a paper prickt full of holes & let it stand in the sunn. When you take out ink put in so much strong beer & it will endure many years. Water makes it apt to mold. Wine does not. The air also if it stand open inclines it to mold. With this Ink new made I wrote this. Writer Isaac Newton Date written ca. 1669 to 1693 Paper cm x cm; in x in Pen Book Penmanship Style Collection Courtesy ..... File name Newton Isaac 1643-001-001-001 Links The Newton Project [1] Original file [2] Transcription [3]