FOODS HUMAN NUTRITION. 965 



green vegetables. This ration wonld sujiiily in ronnd innnbers 142 gni. i)rotein. 

 52 gni. fat, 550 gm. carijobydrates, and 25 ^m. ash, and 3,2.'{2 calories of avail- 

 abb' oncrfry at a (•<)st of (><; cents Chilean. 



Ration for the technical school, .1. Fkjukroa (Itnl. Min. hidiis. i Obrax J'ttb. 

 [Cliilr], 7 (1008), \o. J, p. 8). — The ration proposed fur tin" irovcninM-nt tech- 

 nical school and its divisions is given. (See above.) 



School luncheons. How and what to prepare for them, .Mr.s. F. Schoff 

 (Sat. I'otni. Mothcts Mdi/., J ii:)08), No. 3, ijp. 8l-8,i). — A discnssion on pre- 

 paring and packing school Innches and related matters. 



The new housekeeping', C. Barnard (Housckceftiny I'Jrjil. Hta. \(Jonn.] Jiul. 

 //, 1)1). //). — A discussion of the use of alcohol as fuel and of preparing food 

 with steam cooi^ers and tireless cookers. 



The importance of intestinal bacteria in nutrition, III, M. Schottpxiu.s 

 (Arch. Ihj(). en {11)08), No. 3, pp. 177-208) .—The author concludes that intesti- 

 nal bacteria are necessary for man and other vertebrates, and that normal in- 

 testinal bacteria assist in the preparation of nutrients so that they may be 

 resorbed, Induce peristalsis by stimulating the intestinal wall, diminish or de- 

 stroy pathogenic bacteria in the intestine, and protect the body from bacterial 

 poisons. 



The absorption of proteins, W. I). Halliburton { Lancet [London], 1909, I, 

 No. 1, pp. 21-23). — A polemical article in which the author briefly summarizes 

 present theories regarding jirotein cleavage in the body and metaljolism. 



The effect of adding meat to a vegetarian diet, P. Albkrtoni and F. Rossi 

 (Arch. E.rpt. I'utli. u. I'hnnnakoL, 1908, Nh/>., pp. 29-38).— The authors briefly 

 report the results of a series of investigations on the addition of meat to the 

 diet of peasants of the Abruzzi region who have been users of an almost ex- 

 clusively vegetarian diet for generations. 



An increase in' the power of assimilation and in body weight was noted as 

 well as in physical strength and the hemoglobin content of the blood. Atten- 

 tion is directed especially to the increase in red blood corpuscles, a result which 

 is simila'r to that observed in the treatment of anemia and underdeveloped 

 individuals. 



In discussing the results of their investigations in relation to the question 

 of nitrogen minimum, the authors state that the distinction must be clearly 

 drawn between a nitrogen minimum estimated on the basis of the balance of 

 income and outgo and the practical minimum which enables the individual to 

 carry on all the psychological and physical processes which are essential if he 

 is to succeed in his environment. 



Concerning' the effect of maize diet, (\ Bkzzola (Clin. Med. IftiL, J/d (1907), 

 No. 3. pp. tCl-ir,.',; ahx. in tiioclum. CrntbL, 7 (1908): No. 18-10, p. ()90).— In 

 exjieriments with guinea pigs an exclusive maize diet did not prove adecpiate. 

 When vegetables, etc., were added, better results wei-e obtained. I^ong con- 

 tinued feeding of maize may l»e followed by serious consefpiences. Results 

 were of the .same character whether a good or bad quality of maize was used. 

 The author does not consider that his results are applicable to the di.scussion 

 of maize as an artich' of liinnan food. 



On the available alkali in the ash of humrtn and cow's milk in its rela- 

 tion to infant nutrition, J. II. Kastlk (.Anirr. Jour. I'hiisioL, 22 (1008). No. 2. 

 pp. 28.'f-308). — The essential points of resemi)lance and ditferejice in the com- 

 positi(m and properties of the ash of human and ctiw's milk are discussed in 

 their relations to infant initrition. 



•• In .'i5 out of 50 specimens of cow's milk, in which the .-ilkaliiiity of the ash 

 was determined, it ranged from O.lVXi cc. of tenth-normal sodium hydro.vid to 



