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Title: A lot of information, but not all correct
Review: Dr. Stewart is not chemist, nor knows chemistry so well, therefore he made several errors in this book. Although he collected a lot of information, not all materials are well-reviewed nor verified. His explanation about the transformation of matricin(he calles it matricene) to chamazulen is incorrect, the classification of terpinen-4-ol as phenolic compound is invalid, let alone the false chemical formulas of chamazulen and terpinen-4-ol.His preaching reduces the professional quality of the book. What a pity ! A book is recommended for beginners and for professionals who has no ideas about chemistry. For those who have good background, it is a good book to pick up information and to verify it on one's own.
