The first book of the art of mettals in which is declared the manner of their generation; and the concomitants of them

Quote of the Day

“in all silver is white, as in all gold there is red, sulphur. No other sulphur like that which exists in these bodies is found on all the earth. Therefore we cunningly prepare these two bodies, that we may have sulphur and quicksilver of the same substance as that which generates gold and silver under the earth. For they are shining bodies, whose rays tinge other bodies with true whiteness and redness, according to the manner of their own preparation.”

Avicenna

The Golden Tract Concerning The Stone of the Philosophers