Essential Theoretical Writings

Quote of the Day

“We do with all true Philosphers assure you, that all things, necessary for our Philosophical Work, besides the Fewel, Vessels, and some new Instruments, belonging to the Furnace, are to be purchased for less than the Expence of one single Guinea, and that every where, and at all times of the year.”

Urbigerani

Aphorismi Urbigerani