POODS HUMAN NUTRITION. 561 



analysis of 93 samples of niarshuiallows, which were examined esi>ecially for 

 their content of sulphurous acid and sulphites, sometimes added to produce the 

 desired whiteness. The quantity of sulphurous acid present in no case exceeded 

 1 part in 2.000 by weif:ht. which is regarded as harmless to health. 



A sanitary code for bottlers {Pure Products, 10 {WlJf), No. 11, pp. 't.'fC- 

 5-^9). — The text is given of a code issued by the Agricultural Commission of 

 (he State of Ohio for the conduct of places where soft drinks are prepared. 



Concerniug nickel cooking vessels {Pure Products. 10 {1914), No. 11, pp. 

 543, 54-i)- — This note states that the solubility of nickel varies according to 

 its method of manufacture. 



The following figures show the quantities of nickel per square meter of sur- 

 face dis.solved by sulphuric acid: Rolled nickel. 15.5 to 1G.9 mg. ; cast nickel. 

 25.5 to 28.8 mg. ; electrolytic nickel. 30.G to 30.8 mg. : drawn nickel, 33.1 to 39.0 

 nig. : and ]nire nickel. 01.4 to G5.5 mg. 



The diet, its composition, and influence on the health, with special refer- 

 ence to the mineral constituents, R. Berg {Die Nahrungs und Genussmittel, 

 ihrc Zusammcnsctzung ttnd ihr Einfluss auf die Gesundhcit, mit hesonderer 

 BeruclcsicMtgung der Aschenhestandteile. Dresden: Holze d Pahl, 1918, pp. 60; 

 rev. ill Zenthl. Biochem. u. Biophys., 17 {191^), No. 3-4, p. 15&). — This book 

 contains data regarding the ratio of the acid and basic mineral constituents of 

 foods and is based on the theory that the diet should contain more than enough 

 inorganic bases to neutralize the inorganic acids. Some of the data is the re- 

 sult of original work, but the greater part has been compiled from various 

 sources. 



The derangement of the skeletal system by a diet poor in phosphorus, M. 

 Masslow {Biochem. Ztschr., 64 {1914), No. 1-3, pp. 10G-110).—ThQ results of 

 a microscopical examination of bones strengthen the author's conclusions, drawn 

 from previous work (E. S. R., 30. ]i. GG9), that a deficiency of phosphorous in 

 the diet play.s a definite part in pathogenic disturbance of the bones. 



The distribution of phosphorus in striated muscle, A. E. Rabbeno (ArcJi. 

 Farmacol. Spcr. c Sci. Aff., 18 {1914), ^'0. 3, pp. 97-106) .—From the examina- 

 tion of several samples of straine^l muscle, from both human and animal sources, 

 the author concludes in part that the inorganic phosphorus makes up about 

 65 per cent of the total phosphorus content of the muscle. The nucleo portion 

 of organic phosphorus is greater than the portion outside the nucleus. 



Maintenance of mice on a diet composed of simple foods, P. Roiimann 

 {Biochem. Ztschr., 64 {1914), No. 1-3, pp. 30-62, figs. 23).— X series of experi- 

 ments was conducted to determine the relative nutritive values of protein con- 

 taining pho.sphorus and phosphorus-froe ])rotein. A large amount of experi- 

 mental data is given, from which the following conclusions are drawn. 



Phosphorus-containing protein is not absolutely necessary in the diet. Such com- 

 pounds found in the body cells may be synthetized in the animal organism. 

 Purin bases such as lecithin may be similarly formed. 



The relations of vitamins to lipoids, Evelyn A. Cooper {Bioehem. Jour., 

 8 {1914), ^0. 4- PP- 347-354). — The results are reported of investigations regard- 

 ing experimental beri-beri from which the conclusion is drawn that vitamins 

 do not enter into the constitution of the lipoids of brain and muscle but may 

 be absorbed by them and stored until needed by the organism. The deleterious 

 effects of lipoid-free diets observed by some workers are attributed by the 

 author to mechanical removal of vitamins by alcohol-ether extractions rather 

 than to a deficiency of lipoids. 



Studies of a qualitatively insuflacient diet, S. Oseki (Biochem. Ztschr., 65 

 {1914), ^0. 1-2. pp. 158-176). — Feeding experiments with laboratoiT animals 



