Essential Theoretical Writings

Quote of the Day

“It is to be observed, that the Glass Vessel, which must be oval, with a Neck half a foot long, and very strong, be of a fit bigness, and of such Capacity, that your Matter, when it is put into the Vessel, may take up only the third part of it, leaving the other two vacant: for, if it should be too big, it would be a great hinderance in performing the Work, and if too little, it would break into a thousand pieces.”

Urbigerani

Aphorismi Urbigerani