658 EXPERIMENT STATION RECOED. 



the effect upon the plant. The attacks have been found to be more severe dur- 

 ing the spring, autumn, and winter seasons. 



"Where the nests are accessible, fumigation with carbon bisulphid has proved 

 the most efficient m'ethod of control. If the nest occurs on the surface of the 

 ground, place a saucer containing a few ounces of the liquid fumigant on the 

 ground over the nest and cover the whole with several thicknesses of heavy 

 canvas. Allow the fumigation to continue for at least 12 hours. If the nest 

 is underground, push swabs of absorbent cotton soaked in the fumigant down 

 into the nest, firmly packing the soil over them. In case these methods can not 

 be applied poison baits may be used. So far they have given excellent results. 

 Killing the ants with hot water is also an advantageous method. Fish scrap 

 fertilizer may be found to have some value as a repellent against this insect." 



The red spider, F. Zacher {Gartcnflora, 6^ {1915), No. 11-12, pp. 171-182, 

 figs. 10). — An account of the red spiders occurring in Germany, their economic 

 importance, and means of control. 



A progress report on Sarcocystis tenella, J. "W. Scott {^yyom^nlJ Sta. Rpt. 

 1015, pp. Il.'f-IIH). — The data here pn'seuted have been substantially noted 

 from another source (E. S. II., 34, p. 384). 



It is stated that sarcosporids are very common among Wyoming sheep, 62 of 

 77 sheep examined at a local slaughterhouse having been found to be infested. 

 It is pointed out that the results of the experiments reported can not be ex- 

 plained on the theory that the sheep is the definitive host of &'. tcncUa, and that 

 if the parasite is an aberrant form the definitive host is probably some insect 

 or other invertebrate. 



FOODS— HUMAN NUTRITION. 



Food chemistiT in 1914, J. RtJULE (Ztschr. Anycw. Chcm., 28 (1915), Aiif- 

 satztcil, Xos. 80, pp. 397-.'t01; 82, pp. JfOS-JfOS; 8//, pp. ^16-i^l9; 85, pp. .',.il, 

 432). — A summary and digest of data, with many references to the literature. 



International catalogue of scientific literature. Q — Physiology. QR — 

 Senim physiology (Intcrnat. Cat. Sri. Lit., 11 (1915), pp. rill-\-H9.i. l-'fSi- 

 30). — This volume, like the previous editions (E. S. R., 32, p. 5G5), contains 

 references to the literature of physiology, including among other branches of 

 the subject physiological chemistry, respiration, digestion, absorption, and 

 metabolism. In the second part of the volume references to serum physiology 

 are given. 



The history of nutrition, Lichtenfelt (Die Gcschichtc der Ernuhrung. Ber- 

 lin: Gcorg Rciiitcr, 1915, pp. 365; abs. in Zentbl. Biochem. u. Biophys., 18 (1915), 

 No. 7-8, pp. 2.'f7, 2.'f8). — This book discusses the fundamental principles of the 

 chemistry and physiology of nutrition, both from the historical and practical 

 standpoint. Although some radical theories are exploited, a large amount of 

 serviceable information is here available. 



Not by bread alone, H. W. Wii.ev (New York: Hearst's International Library 

 Co., 1915, pp. yin-\-374, pl- 1)- — In this book the author has brought together 

 and critically discussed in simple language the principles of human nutrition. 

 In addition to the customary definitions and descriptions of proteins, fats, carbo- 

 hydrates, and mineral substances, and a discussion of the role of all these food 

 constituents in maintaining a normal, healthy life, special attention is given to 

 the following general topics: The economy of nutrition; infant feeding and the 

 feeding of children of different ages; the relations of good teeth to luitrition; 

 the inlluence of the diet on disease and old age; and the practical application 

 of the principles of nutrition. 



