Collectanea Chemica is a comprehensive collection of alchemical writings attributed to Philalethes, Eirenaeus, a pseudonym for a 17th century alchemist. The book is divided into three parts and contains over 40 treatises and essays on various alchemical topics. Part one focuses on the theoretical principles of alchemy, including the nature of matter, the four elements, and the three principles of alchemy. Part two discusses practical alchemy, including the preparation of various alchemical substances and the transmutation of metals. Part three contains miscellaneous essays on various topics, including astrology, medicine, and the symbolism of alchemy. The book is written in a cryptic and allegorical style common to alchemical writings of the time, making it a challenging read for those unfamiliar with the subject. Nonetheless, Collectanea Chemica remains a valuable resource for those interested in the history and philosophy of alchemy.This Is A New Release Of The Original 1893 Edition.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.