View Full Version : Johann Isaac Hollandus

08-11-2009, 07:55 PM
I was trying to find out more about this cat and came across:

They were two brothers, both of them of great parts and ingenuity, and wrote on the dry topics of chymistry. They lived in the 13th century, but this is not assured. The whole art of enamelling is their invention, as is also, that of colouring glass, and precious stones, by application of thin metal plates.

Their writings are in the form of processes, and they describe all their operations to the most minute circumstances. The treatise of enamelling is esteemed the greatest and most finished part of their works: whatever relates to the fusion, separation, and preparation of metals, is here delivered. They write excellently of distillation, fermentation, putrefaction, and their effects; and seem to have understood, at least, as much of these matters as any of the moderns have done. They furnish a great many experiments on human blood; which Van Helmont and Mr. Boyle have since taken for new discoveries. I have a very large work in folio, under their name, of the construction of chymical furnaces and instruments. Their writings are as easily purchased, as they are worthy of perusal, on account of valuable secrets in them, which may pave the way for greater discoveries. - source (http://www.sacred-texts.com/grim/magus/ma267.htm)

Never new it was two people (if this is true)!

He/them wrote the classic: A Work of Saturn (http://www.levity.com/alchemy/hollandus_saturn.html)


solomon levi
08-11-2009, 08:38 PM
This is the version I'm familiar with - that they were father and son: