_Xeninephidei_ are spirits which delight to discover the secret or occult properties of nature unto men, the power of which is granted to them. _Xisinum_ is Vineger. Y. _Yrcus_ is a Male Goat, whose blood is said to soften glasse, and flints, &c. _Ysopus_ is the art of Alchymy to separate pure from impure. Z. _Zaidar_ is Mercury. _Zaidir_ is Copper or Verdegrease. _Zarfa_ is Tin. _Zelotum_ is stony Mercury. _Zerus_ is Gold. _Zoraba_ is Vitriall. _Zinck_ is a metallick marcasite, and a certain naturall mixture of four immature metalls, whereof Copper is most apparent. _Ziniar_ is Verdegrease. _Zuitter_, or _Zitter_, is a Marcasite. _Zymar_, or _Zysar_ is Verdegrease. FINIS. TRANSCRIBER’S NOTE. Please be aware that in the centuries since this book was written, medical science has progressed. The medical treatments and medicines recommended in this book should only be used under guidance of a trained medical professional. Many of the medicines suggested are now known to be deleterious to your health or poisonous. Archaic, obsolete and inconsistent spellings have been included as in the original book. When this book was written, English was just beginning to distinguish between I and J, and U and V. There are many words where these letters will appear to be transposed. Most of the archaic and obsolete spellings are homophones for the spelling used today, however there were some notable exceptions: Word in book Current spelling Filbeards Filberts flowre flour Jeat Jet Jngat Ingot malitious malicious pretious precious Research indicates that “Archeus” and “Archeius” are inconsistent spellings of the same word. The words “cachymie”, “cachymia” and “cachyma” do not appear in any of the usual sources for English words. They appear to be attempts to Anglicize the Latin word “Cachymia” (pl. “Cachymiæ”), which Paracelsus used to mean an “imperfect metallic body”. In the original book, the first letter of some words was in italics, while the rest of the word was in normal font. This has been maintained in the HTML and e-book formats, however these specific italics were dropped in the text version of the book. In the original book, in the sub-book _On the Nature of Things_, the page numbering went from 104 to 107, with no 105 and 106 intervening. The catch-word on page 104 matched the first word of 107 and the text appeared to continue on 107 from the gist on 104. This and other sources indicate that 105 and 106 were skipped. In this e-book, the pages in _On the Nature of Things_ have been renumbered from 107 to the end of the sub-book to make the page numbering continuous. The Table of Contents was moved to the front of the book and expanded to cover the entire book. It was originally located between _A Treatise of Sulphur_ and _On the Nature of Things_, and only covered the twelve treatises of _A New Light of Alchymie_ and _A Treatise of Sulphur_.