Mosss sazih: It is to be observed that the envious have named lead of copper instruments of formation, simulating, deceiving prosterity,* to whom I give notice that there are no instruments except from our own white, strong, and splendid powder, and from our concave stone“ and marble, to the whole work whereof there is no more suitable powder, nor one more conjoined to our composition, than the powder of Alociz,t out of which are produced instruments of formation. Further, the Philosophers have already said: Take instruments out of the egg. Yet they have not said what the egg is, nor of what bird.} And know ye that the regimen of these things is more difficult than the entire work, because, if the composition be ruled more than it should be, its light is taken and extinguished by the sea. Wherefore the Philosophers have ordered that it should be ruled with profound judgment. The moon, therefore, being at the full, take this and place in sand till it be dissolved. And know ye that while ye are placing the same in sand and repeating the process, unless ye have patience, ye err in ruling, and corrupt the work. Cook, therefore, the same in a gentle fire until ye see that it is dissolved. Then extinguish with vinegar, and ye shall find one thing separated from three companions. And know ye that the first, Ixir, commingles, the second burns, while the third liquefies.* In the first place, therefore, impose nine ounces of vinegar twice—first while the vessel is being made hot, and second when it is heated.