this three or four times; then break the Re∣tort, being cold, and take out the aaa, which grind to a fine Powder, and put it in an Iron pan, and hold it over a coal {fire}, stirring it continually with an Iron Rod, un∣til it be almost red-hot, and that it be con∣verted into a red Powder, like red {precipi}tate. Take of this red Powder two parts, and of the aforesaid Salt of ♄ one part, reduce them to a fine Powder, which put into a Matrass, and digest it in Sand for eight days: Then put it to Coppel, and you shall have half your aaa fixed into fine ☽.
Hart. When Sir K.D. was at Franckfort in Germany, where he lived a year and half, in the Year 1659. he went often from Franck∣fort to Ments (being four German Leagues distance) to Visit the Prince Elector there: Then he conversed also with this Captain Ziegler, who was a famous Chymist. And when Sir K. returned to England about the time of the Kings happy Restauration, the said Captain sent him this Process written in the German Tongue, assuring him that he had done it: He said, that the ☽ which he got, he put to separating {water}, and he had some ☉ out of it. He said also, that he thought this Salt of ♄ would fix ☿, in ☉ if the aaa were made with ☉ instead of ☽.