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filicis, of which the essential oil, although not particularly described, 

 may yet be regarded as a somewhat insignificant active principle com- 

 pared with its other constituents. As a result of the arrangement, 

 bitter almond oil and its congeners, as well as wintergreen oil and 

 the mustard oils are placed under the drugs containing glucosides. 

 A general introduction at the beginning of each of the five sections 

 gives indications as to the detection, isolation and identification of the 

 various bodies, such as alkaloids, essential oils, etc., and mentions the 

 principal analytical methods. Each constituent of an oil is treated 

 with great thoroughness as regards its constants, general chemical 

 behaviour, the more important conversions (especially its relations to 

 other compounds known to occur in essential oils) as well as, where 

 possible, its synthesis. The text is rendered still more complete by 

 numerous chemical formulae graphically shown and by references to 

 literature. 



In the series known as the "Sammlung Goeschen", published by the 

 Leipzig firm G. J. Goeschen, a booklet of 190 pages (bound 0,80 marks) 

 has made its appearance which, within the restricted compass pres- 

 cribed for the series, treats of Essential Oils and Odoriferous Substances. 

 (Atherische Ole und Riechstoffe.) The author, F. Rochussen, deals in 

 each chapter, after an historical introduction, with the mode of pre- 

 paration and the properties of the oils, their phy to-physiological signi- 

 ficance, their examination, and their adulteration. In the account of 

 the more important oils and perfumes, which follows next in order, 

 the raw materials and their occurrence are described, in the case of 

 the oils also the separate constituents so far as they are known, and 

 the properties, use, and tests of the products. The physical and 

 chemical constants quoted are those which have been observed in 

 our laboratory. The concluding part of the little volume, which is 

 intended as an introduction and guide to the subject mentioned in 

 the title, consists of a chapter on the use of oils and odoriferous bodies 

 in perfumery and soap-manufacture, medicine, and arts, the manu- 

 facture of beverages, flavouring extracts, etc. We can warmly re- 

 commend this clearly written, concise booklet to all who desire to 

 obtain a quick and accurate insight into our present knowledge of 

 the essential oils and odoriferous bodies, as well as into their multi- 

 farious uses. 



Under the title A working List of the flowering Plants 0/ Balu- 

 chistan, Mr. J. H. Burkill has published a book (Calcutta, Superint. 

 Govt. Pr., 1909), containing a list of the phanerogamous wild plants 

 of Baluchistan. In addition to an enumeration of the scientific and 

 vernacular names of the plants, the book contains many interesting 



