1000 EXPERIMENT STATION RECORD. 



economical article of diet since its nutrients are practically all available for the needs 



of the body. 



The influence of diet on growth and nutrition, 0. Watson and A. Hunter 

 (Jour. Physiol, 33 (1905), Nos. 4~5, Proc. Physiol. Soc.,'l905, p. XIII; 34 {1905), 1-2, 

 pp. 111-132, figs. 2, dgms. 16).— The authors studied the influence of different diets 

 on the growth and general nutrition of animals (rats). The diets comprised bread 

 and skim milk, porridge made with skim milk, rice, raw horse meat, and raw beef. 



In the author's opinion, a meat diet had an injurious effect, as was evident from 

 the mortality in early life of the second generation of meat-fed subjects. "In the 

 case of animals deprived of their ovaries the minimum amount of proteid require- 

 ment is less than in normal females. The permanent stunting of growth [was] asso- 

 ciated with the use of a faulty diet in the growing period." Unfavorable results 

 were obtained on the porridge diet with young subjects. Attention is directed to the 

 similarity in chemical composition of the porridge and bread and milk diets. 



Experiments on the protein and mineral metabolism in man, (t. vox Wendt 

 (Skand. Arch. Physiol., 17 (1905), No. 3-5, pp. 211-289, figs. 4)-— In the experiments 

 reported the metabolism of protein, sulphur, phosphorus, calcium, magnesium, potas- 

 sium, sodium, chlorin, and iron was studied, and the influence of different sorts of 

 fond on the excretion of mineral constituents and other topics are discussed. 



Some of the author's conclusions follow: Sulphur formed by the cleavage of pro- 

 tein is excreted more rapidly than nitrogen and therefore offers a better means of 

 judging of the progress of protein cleavage. The calculated amount of phosphorus 

 required daily per kilogram of body weight is about 0.01 gin., the calcium 0.008 

 gm., and the amount of magnesium 0.001 gm. 



Replacing- protein by gelatin in metabolism experiments, M. Kaiffmanx 

 (Arch. Physiol. [Pfliiger~\, 109 (1905), No. 9-10, pp. 440-465).— According to experi- 

 ments made with a dog and with man, gelatin may replace protein in the diet if it 

 is supplemented by suitable materials for building up the protein molecule. In a 

 test of this character in which the author was the subject 93 per cent of the protein 

 nitrogen was replaced by gelatin nitrogen, 4 per cent by tyrosin nitrogen, 2 per cent 

 by cystin nitrogen, and 1 per cent by tryptophan nitrogen. 



Experiments on the effect of tea upon stomach, secretion, T. Sasaki (Ber- 

 lin. Klin. Wchnschr., 42 (1905), No. 49, p. 1517; abs. in Zentbl. Physiol, 19 (1905), No. 

 24, p. 919). — It appeared from the experiments that tea hindered slightly the quan- 

 tity of gastric juice and its acidity. 



A new nitrogenous constituent of normal human urine, P. Hari (Ztschr. 

 Physiol. Chem., 46 (1905), No. 1-2, pp. 1-8). — The author has isolated a constituent 

 (or rather its compounds) of urine, which he believes is different from urobilin, 

 oxy protein acid, and other known constituents. 



Recent advances in physiology and biochemistry, edited by L. Hill (New 

 York: Longmans, Green, & Co.; London: Edward Arnold, 1906, pp. NII J r 740, figs. 

 33). — This volume contains a number of papers by B. Moore, J. J. R. Macleod, 

 L. Hill, M. S. Pembrey, and A. P. Beddard, summarizing the recent advance which 

 has been made along a number of lines of research. 



Such subjects are included as uric acid metabolism, hemolysins and immunity, the 

 metabolism of fat and treatment of obesity, the influence of temperature and relative 

 dryness of the atmosphere, of work, diet, baths, clothing, etc., on metabolism, the 

 action of the digestive ferments, catalysts and chemical excitants, the colloidal struc- 

 ture of living matter and the influence of electrolytes in solution, the formation and 

 absorption of lymph, the urinary excretion, etc. Each article contains a bibliography. 



As the preface states, this book is designed "to set before the student of medicine 

 the progress made in those branches of physiological study which have an imme- 

 diate bearing on pathology and therapeutics, and to thereby give him an insight into 

 the methods of research, and a training in the processes of deduction, which can not 

 be gained from the bare and unstimulating outline of the text-book." 



