FOODS — HUMAN NUTRITION. 353 



future work should bear upon the question of the respective values of the 

 various parasites in the control of the sawfly." 



An unrecorded parasite of Toxoptera graminum, F. M. Webster {Jour. 

 Econ. Ent., 7 (1914), No. 5, pp. 403, 404).— The author calls attention to the 

 fact that by mistake Eupachylomma rileyi, reared from the spring grain-aphis, 

 is not recorded as a parasite of that pest in the bulletin previously noted (B. S. 

 R., 27, p. 859). 



The house centipede, C. L. Mablatt (U. 8. Dept. Agr., Farmers' Bui. 627 

 {1914), PP- 4, flffs. 2). — This is a reprint of Bureau of Entomology Circular 48, 

 previously noted (B. S. R., 14, p. 374.) 



Injury to truck crops by springtails (Smynthurus sp.), D. E. Fink {Jour. 

 Econ. Ent., 7 {1914), No. 5, pp. 4OO, 40I, pi. i).— The author reports upon ob- 

 servations of injury by springtails {Smijnthurus sp.) to lettuce, spinach, and 

 seedling cucumbers. 



Two new Sarcosporidia, H. Crawley {Proc. Acad. Nat. Sci. Phila., 66 {1914), 

 pt. 1, pp. 214-218, fig. 1). — Sarcocystis Icporum, a parasite of rabbits, and 8. 

 setophagw, a parasite of the American redstart {Setophaga ruticilla), are de- 

 scribed as new. 



Preliminary list of the Acari occurring' on the brown rat (Mus norvegicus) 

 in Great Britain, with the description of a new species (Hsemogamasus 

 oudemansi), S. Hirst {Bui. Ent. Research, 5 {1914), No. 2, pp. 119-124, pls- 

 8, figs. 3). — Twelve species are listed as occurring on wild specimens of the 

 brown rat. Only three, namely, L(daps cchidninus, Notoedres muris, and 

 Myobia ensifera, can be regarded with certainty as practically restricted to 

 M. norvegicus, although H. oudemansi, here described as new, has thus far been 

 found only on this host. 



The evolution of Sarcocystis muris in the intestinal cells of the mouse, 

 H. Crawley {Proc. Acad. Nat. Sci. Phila., 66 {1914), pt. 2, pp. 432-436, pi. 1).— 

 A contribution to the knowledge of the biology of this parasite. 



Further research on Spiroptera cancer in rats, J. Fibiger {Hospitalstid. 

 [Copenhagen], 57 {1914), Nos. 34, pp. 1049-108O; 35, pp. 1081-1112; abs. in 

 Jour. Amer. Med. Assoc, 63 {1914), Nos. 14, p. 1244; 16, p. 1432).— In a further 

 study of this subject (B. S. R.. 30, p. 279) the author finds that the parasite 

 which he has discovered in cancer in rats is a new species of Spiroptera. In 

 Denmark this parasite has been found only in Mus decumanus among numerous 

 rats infesting three sugar warehouses. The finding of the parasites in a large 

 proportion of the rats and in 77 of 115 cockroaches, which seem to serve as 

 intermediate hosts, from West Indian ports led the author to conclude that 

 the parasite is a tropical species. 



The author's total material includes 19 cancers developing in the stomach 

 after feeding the rats with roaches infected with Spiroptera. This he regards 

 as indicating that under certain conditions one-half or four-fifths of the ani- 

 mals infected develop cancer and that no individual predisposition is necessary 

 for this. 



Naphthalin as an insecticide (Agr. Neics [Barbados'], 13 {1914), No. 327, 

 p. 360). — A brief summarized account. 



FOODS— HTJMAN NUTRITION. 



The source, chemistry, and use of food products, E. H. S. Bailey ( [Phil- 

 adelphia], 1914, PP- XIV +517, figs. 75). — This book, which is designed as a 

 text-book for college and high school students in home economics, deals with 

 the more important food products with reference to their source, methods of 



