FOODS HUMAN NUTRITION. 865 



The parasite fauna of Colorado, M. C. Hall (Colu. Col. I'uh., Sci. So:, 12 

 (1912), No. 10, pp. 820-383, fig. 1; abs. in Science, n. ser., 35 (1912), No. 901, 

 pp. 554, 555). — This paper consists of an finnotated list of the parasites recorded 

 from Colorado (pp. 336-368), arranged alphabetically under their respective 

 groups, and a compendium of the parasites listed, arrangetl according to their 

 hosts. " Using the word ' identified ' to indicate at least a generic identification, 

 the list includes at present a total of 251 identified and 27 unidentified species of 

 protozoan, trematode, cestode, nematode, crustacean, mallophagan, heniipterous, 

 dipterous, siphonapteran, arachnid, and annelid parasites." 



A bibliography of the literature on the subject is appendeil. 



Handbook of pathogenic protozoa, edited by S. von Peowazek (Handhuch 

 der Pathogenen Protozoen. Leipsic, 1911, pt. 2, pp. 119-2.'fS, j)Is. 2, figs. 39). — The 

 second part of this work (E. S. R., 26, p. 246) deals with the subject as follows: 

 Chlamydozoa (general) (pp. 119-121), by S. von Prowazek and B. Lipschiitz; 

 vaccine (pp. 122-138) ; variola (pp. 139-152) ; virus myxomatosum (pp. 15S- 

 155); flacherie [Gelbsucht (Polyederkrankheit) ], (pp. 156-161), by S. von 

 Prowazek; epitheliosis desquamativa conjunctivae of the South Sea (pp. 162- 

 171), by A. Leber and S. von Prowazek ; trachoma and chlamydozoan diseases of 

 the mucous membrane (pp. 172-195), by L. Halberstaedter ; rabies (pp. 196- 

 218), by Maresch ; molluscum contagiosum (pp. 219-229) ; epithelioma contagio- 

 sum (pp. 230-242), and an appendix on the Chlamydozoa-Strongyloijlasmen 

 (pp. 243-247), by B. Lipschiitz. 



A bibliography is appended to each paper. 



FOODS— HUMAN NTJTRITION. . 



Rice as food — Investigation of the nitrogen and phosporus metabolism on 

 a diet consisting principally of rice and other vegetable foodstuffs, II. Akon 

 and F. Hocson (Philippine Jour. Sci., B. Med. Sci., 6 (1911), No. 5, pp. 361- 

 381). — These studies were made in the Philippine Islands, the subjects for the 

 metabolism experiments being medical students and Malay prisoners in the 

 Bilibid prison. 



The phosphorus and nitrogen content of rice has been determined in 28 differ- 

 ent classes, the results as here summarized showing that the phosphorus con- 

 tent, within narrow limits, is determined by the grade of milling. The whiter 

 the rice the poorer it is in phosphorus. The nitrogen content of rice differs 

 considerably less than the phosphorus content, but the more intensively a given 

 rice is milled the poorer it becomes in nitrogen. Judging by the phosphorus 

 content of rice, there are 3 stages of milling to be distinguished: Rice, husked 

 only, from 0.7 to 0.8 per cent phosphoric anhydrid; undermilled rice, from 0.45 

 to 0.6 per cent; and overmilled rice, from 0.15 to 0.35 per cent. 



The question of rice as food is particularly important in Asia and Malasia, as 

 there it forms the bulk of the ordinary diet. 



" Several authors point out the fact that a diet consisting for the greater part 

 of rice must of necessity be very voluminous. This idea is based on the sup- 

 position that the rice-eating native cooks his rice in the same way as the Euro- 

 pean. Scheube has shown this to be erroneous. Our own observations as well 

 as those of other residents in the Orient prove that the Japanese, Chinese, and 

 Malays cook rice with so little water that, although the grain becomes softened, 

 it remains apparently dry. In carrying on metabolism experiments, we have 

 weighed, twice daily for 10 days, rice prepared by natives. This was done 

 before and after cooking, and we found that within narrow limits 100 gni. of 

 uncooked rice gives about 250 gm. of cooked rice. Rarely is more than 300 gm. 

 of rice, which cooked would weigh 750 gm., taken at one meal. This is not a 



