30 GEORGE SQUARE, GLASGOW. General Representatives for United Kingdom and Colonies. SUDFELDT & CO., MELLE (HANOVER, GERMANY). JOSLIN SCHMIDT & CO., CINCINNATI, OHIO, U.S.A. THE CHEMISTRY OF Essential Oils AND Artificial Perfumes. BY ERNEST J. PARRY, B.Sc. (Lond.), F.I.C., F.C.S. 552 Pages. Second Edition, Revised and Enlarged. Demy 8vo. 1908. CONTENTS. Chapters I. ~The General Properties of Essential Oils.~ Physical Properties, Optical Properties, Table of Specific Gravities, Refractive Indices and Rotation.--II. ~Compounds occurring in Essential Oils.~ (I.) 1. TERPENES--Pinene, Camphene, Limonene, Dipentene, Fenchene, Sylvestrene, Carvestrene, Phellandrene, Terpinolene, Terpinene and Thujene. 2. SESQUITERPENES--Cadinene, Caryophellene, Cedrene, Clovene, Humulene, Ledene, Patchoulene, and Sesquiterpene from Oils of Cannabis Indica, Table, b.p., sp.-gr., opt. Rot., etc., of same. (II.) THE CAMPHOR SERIES--Borneol, Isoborneol, Camphor, Fenchyl Alcohol, Fenchone, Thujyl Alcohol, Thujone, Terpineol, Cineol, etc., etc. (III.) THE GERANIOL AND CITRONELLOL GROUP--Coriandrol, Nerolol, Rhodinol, Geraniol, Linalol, Citrenellol, etc., Table, b.p., sp.-gr., Ref. Index, etc. (IV.) BENZENE COMPOUNDS--Cymene, Phenols and their Derivatives, Phenols with Nine Carbon Atoms, Phenols with Ten Carbon Atoms, Alcohols, Aldehydes, Ketones, Acids, etc. (V.) ALIPHATIC COMPOUNDS--Alcohols, Acids, Aldehydes, Sulphur Compounds, etc.--III. ~The Preparation of Essential Oils.~ Expression, Distillation, Extraction, Table of Percentages.--IV. ~The Analysis of Essential Oils.~ Specific Gravity, Sprengel Tube Method, Optical Methods, Melting and Solidifying Points, Boiling Point and Distillation, Quantitative Estimations of Constituents, the Determination of Free Alcohols, Absorption Processes.--V. ~Systematic Study of the Essential Oils.~ Oils of the Gymnosperms, Tabulated Angiosperms. (I.) WOOD OILS.--Cedar Oils, Oils of Turpentine, American Turpentine, French Oil of Turpentine, German, Russian, and Swedish ditto, Table of Activities of same, Juniper Wood Oil. (II.) FRUIT OILS.--Juniper Berry Oil, Fir Cone Oils. (III.) LEAF OILS.--Thuja Oil, Oil of Savin, Cedar Leaf Oil, Pine Needle Oil, Cypress Leaf Oil, Table of Pine Oils (after Schimmel). OILS OF THE ANGIOSPERMS--(I.) MONOCOTYLEDONS. (II.) DICOTYLEDONS: (_a_) MONOCHLAMYDEAE--(_b_) GAMOPETALAE--(_c_) POLYPETALAE--VI. ~Terpeneless Oils.~ Terpeneless Oil of Lemon, Tables of sp.-gr. and Rotn. of several Terpeneless Oils, Terpeneless Oil of Orange, Ditto of Caraway, of Lavender, Table of sp.-gr. and Rotn. of Commercial Samples of Oils.--VII. ~The