1917] FOODS HUMAN NUTRITION. 361 



under the name Ldponyssus bursa. Another instance of its attack upon man 

 is recorded. The author suggests that the wide distribution of L. bursa may 

 be due to Its being carried about by the starling. 



It is stated that the European fowl mite (Dermanyssus gallince) apparently 

 does not thrive in tropical and subtropical countries. 



Contributions to the study of parasitic protozoa. — I, On th.e structure and 

 life history of Nosema bombycis, R. Kudo (Bui. Imp. Sericult. Expt. Sta. 

 Japan, 1 (1916), No. 1, pp. 31-51, pis. 2). — This first paper dealing with the 

 structure and life history of the causative organism of pebrine in the silkworm 

 includes a bibliography of 43 titles. 



Contribution to the study of larval forms of heteroxenous nematode para- 

 sites, L. G. Seubat (Bui. Sci. France et Belg., ^9 (1916), No. 4, PP- 297-877, 

 figs. lit). — This paper, dealing with the Spiruridae and Acuariidae, includes a 

 catalogue and a 12-page bibliography of the literature relating to the subject. 



Two new cases of polyradiate cestodes, with a summary of the cases al- 

 ready known, W. D. Foster (Jour. Parasitology, 2 (1915), No. 1, pp. 7-19, figs. 

 4). — In reviewing the literature the author finds that altogether 44 cases of 

 polyradiate cestodes, including larvae, have been reported, in all but two of 

 which the adult forms were triradiate. The fact that the greater number of 

 these cases are triradiate forms of Tcenia saginata, although several species 

 are represented, ig thought to be due to the greater chances for observation of 

 this species. 



A feeding experiment with triradiate proglottids of T. pisiformis tended to 

 show that in this species perfectly normal cysticerci may result from abnormal 

 adults. 



Polyradiate cestodes, F, D. Baekeb (Science, n. ser., IfS (1916), No. 1101, pp. 

 170, 171). — The author calls attention to a paper* which gives descriptions of 

 two new species Oj polyradiate cestodes not referred to in the paper above noted. 

 It was based upon a study of four perfect and entire specimens of Tcenia ser- 

 rata, i. e., T. pisiformis, and three perfect specimens of T. seriaUs from dogs 

 at Lincoln, Nebr. 



A fvirther note on polyradiate cestodes, W. D. Foster (Science, n. ser., 44 

 (1916), No. 1133, pp. 388, 389).— A further discussion of the subject in which 

 the author replies to the paper above noted. 



FOODS— HUMAN NUTRITION. 



Characteristics and quality of Montana-grown wheat, L. M. Thomas 

 (U. S. Dept. Agr. Bui. 522 (1917), pp. 34, pls. 2, figs. i7).— This bulletin con- 

 tains information regarding the varieties and types of wheat grown in Montana 

 and their grading, together with a discussion of wheat quality, color of flour 

 and bread, water absorption, loaf volume, and texture. It also reports the 

 results of a number of baking tests with Aloutana wheat and gives data regard- 

 ing the correlation of physical characters and milling quality and a comparison 

 of the wheats of Montana with those grown in other sections. 



In conclusion the author states that five distinct classes of wheat are pro- 

 duced in Montana, which may be designated as hard spring, hard winter, west- 

 ern red, western white, and durum. " The two first-named classes are of about 

 the same milling quality, except that the spring wheat is decidedly superior In 

 baking strength. The wheats of these two classes also resemble each other 

 closely in physical characteristics and composition; both are best suited for 

 the production of a bread flour. 



'Science, n. ser., 31 (1910), No. 804, p. 837. 



