658 EXPERIMENT STATION EECOED. 



(i.sfiiinihifd, HymooihiH o.rydcantlieUa, 11 uponihmnita padclln, and Elachista 

 twniateUa. The larvai of the bee moth are attacked while quite yoimg and do 

 not attain a large size. A single parasite usually develops in each larva. The 

 author has introduced this parasite into hives and finds that the bees pay no 

 attention to its presence. 



Descriptions of some new fungus-growing ants from Texas, with Mr. 

 C. G. Hartman's observations on their habits, W. M. Wheeler {Jour. N. Y. 

 Ent. Soc, J!> {19 It), No. .'/, pi>. 2'i5-2.j'j, pi. 1) . — One subspecies and 4 varieties 

 of ants of the genus Atta are described as new to science. 



British bee keeper's guide book, T. W. Cowan {London, 191 1, 20. rd., pp. 

 Vni+226, pi. 1, figs. 158). — A small pocket guide to the management of bees in 

 movable comb hives, and the use of modern bee appliances. 



The cecidia of central and northern Europe, H. Ross (Die Pflanzengallen 

 (Cecidien) Mittcl- tind Nordeiiropas Hire Erreger und Biologie und Bestim- 

 mungstabellen. Jena, 1911, pp. VIII+350, pis. 10, figs. 233).— The first part of 

 this work (pp. 1-SO) is devoted to a general discu.ssion of plant galls, their 

 causal agents, development, etc., and the second part (pp. 81-341) to host tables 

 for the separation of tlie various forms. 



Indexes to the text and to the gall-forming agents, arranged both by genera 

 and by species, are appended. 



Slugs injuring field and garden crops in the Government of Moscow, X. 

 Vavilov (Abs. in Zhur. Opytn. Agron. (Russ. Jour. Expt. Landw.). 11 {1910), 

 No. 5, pp. 7^.5, 746)- — In combating slugs the best results have been obtained by 

 siiraying with copper sulphate at the rate of 3 lbs. to a pail of water, or by 

 pulverizing and scattering it over the field. 



The parasites that inoculate disease germs, J. Guiabt {Les Parasites 

 Inoculateurs de Maladies. Paris, 1911, pp. VI +362, figs. 101). — This work con- 

 sists of 2 parts, the first dealing with insects and the diseases the germs of 

 which they inoculate (pp. 11-184) and the second part with intestinal worms 

 and the disease germs inoculated thereby (pp. 1S5-.3.58). 



Insecticide decisions {U. 8. Dept. Agr., Insecticide Decisions 5, p. 1; 6, pp. 

 2). — The first of these decisions relates to the combined arsenious oxid in Paris 

 green and the second to the inert and active ingredients of Bordeaux mixture. 



FOODS— HUMAN NUTRITION. 



Principles of human nutrition — a study in practical dietetics, W. II. Jordan 

 (New York, 1912, pp. XXI +1,50, pi. 1, figs. J6).— This handbook, according to 

 the author, is designed for the instruction of students with moderate scientific 

 requirements, whether in colleges, secondary schools, short courses, schools of 

 domestic science, or correspondence schools, rather than students who have 

 specialized in organic and biological chemistry. 



Part 1 considers the principles of human nutrition, and part 2 practical 

 dietetics. Some of the subjects discussed are the chemical elements involved 

 in the nutrition of the human body, the compounds of human nutrition, the 

 digestion of food, the distribution and transformations of the digested food, the 

 selection of food or the regulation of diet, food economics, special dietetic 

 methods, the nutrition of the child, the character and food value of certain com- 

 mercial articles, the preparation of food, and food sanitation. 

 • The physiology and metabolism of growth, W. Biedermann {Physi- 

 ologic des Stoffwechsels Physiologie der Zeugung. Jena, 1. half, 1910, Nos. 1-5, 

 pp. VI+980; 1911, Nos. 6-7, ;)/). 981-1563+X, figs. //75).— This second volume 

 of the Handbuch der Vergleichenden Physiologie, of which H. Winterstein is 

 the editor, takes up in detail the physiology and metabolism of plants and 



