310 EXPERIMEIS-T STATION EECORD. 



S55), — This is the report for the year 1912 in continuation of that previously 

 noted (E. S. R., 28, p. 616). 



The chemistry of plant and animal life, H. Snyder (yew York, 191S, 3. rev, 

 ed., pp. XXII -{-388, pis. 3, figs. 101). — The third revised edition of this work, in 

 which an attempt has been made to obtain a sharper division between the first 

 part, dealing with the elementary principles of chemistry from an agricultural 

 viewpoint, and the second section, which treats more distinctively of the chem- 

 istry of plant and animal life. 



Biochemistry of plants, F. Czapek (Biochemie der Pflanzen. Jena, 1913, 

 vol. 1, 2. rev. ed., pp. XIX-{-828 figs. 9). — This, the second revised edition, has 

 been amplified. Its contents include a historical introduction, general bio- 

 chemistry, special biochemistry of plants, and the lipoids in the plant metab- 

 olism. 



Micro-chemistry of plants, H. Molisch (Mi^rochemie der Pfianze. Jena, 

 1913, pp. IX-\-395, figs. 116). — ^This publication is divided into a general and a 

 special part. The former deals with methods, apparatus, and general consid- 

 erations, while the special part is subdivided into an inorganic and organic 

 division. The inorganic portion deals with the cations (iron, aluminum, man- 

 ganese, calcium, magnesium, potassium, sodium, and ammonium), the anions 

 (sulphates, nitrates, phosphates, carbonates, silicates, chlorin, and io.din), 

 and oxygen. The organic portion deals with the fatty series, the aromatic 

 series (which includes phenols, aldehydes, quinones, terpenes, resins, tannins, 

 glucosids, and coloring matters), the cell membranes, and the inclosures of 

 the nucleus, plasma, and cellular fluid. The book contains a comprehensive 

 bibliography. 



Osmotic pressure, A. Findlay (Xeiv York, London, and Bombat/, 1913, pp. 

 y/-f84, pis. 2). — The contents of this book, which is one of a series of mono- 

 graphs on inorganic and physical chemistry, are as follows: Semipermeable 

 membranes and osmotic pressure; van't Hoff's theory of dilute solutions; 

 direct determination of the osmotic pressure of concentrated solutions; dis- 

 cussion of the recent determinations of osmotic pressure, and of the van't 

 Hoff theory; the general theory of ideal solutions; discussion of the osmotic 

 pressure of aqueous solutions of cane sugar in the light of the theory of ideal 

 solutions; indirect determination of the osmotic pressure; and views regarding 

 the cause of osmosis and the action of the semipermeable membrane. A bibli- 

 ography embracing 137 titles is appended. 



Solvents, oils, gums, waxes, and allied substances, F. S. Hyde (Neio York, 

 1913, pp. YI-{-116). — This book consists of a series of notes for the use of fac- 

 tory chemists and those who desire a short reference work on commercial 

 organic products. It includes tests which have been found reliable in the 

 hands of the author. Its contents are as follows : Various solvents and fluids ; 

 terpene bodies, camphors, essential oils, fragrant substances, and balsams; 

 true gums, gum resins, and bitumens; carbohydrates; albuminoids and pro- 

 teids ; oils, fats, and waxes ; a list of commercial tests on oils and fats ; lubri- 

 cating oils; linseed oil; insoluble soaps; fatty acids; alkaloidal substances; 

 bitter principles; and miscellaneous substances. 



The volatile oils, E. Gildemeister and F. Hoffmann {Die Atherischen Ole. 

 Leipsic, 1913, vol. 2, 2. ed., pp. XYIII-\-713, pis. 5, figs. 53).— This is the second 

 edition of the second volume of this work, and has been edited by E. Gilde- 

 meister. The first volume has been previously noted (E. S. R., 25, p. 113). 



Siology of fat decomposition, A. Spieckekmann (Festschrift 84- Versamml. 

 Dent. JfHaturf. u. Arzte von der Med. Natunv. Gesell. Miinster, 1912, pp. 94- 

 111). — A review of the work of this author with reference to the decomposition 



