POODS NUTRITION. 289 



The estimation of carbohydrates in feces, 8. WEiSEEand A. Zaitm hek | Landw. 

 Vers. Stat., 58 1903 . Nos. S ;. pp. 232-237 '.—From experiments reported the con- 

 clusion was drawn thai it is absolutely necessary to estimate the amount of pento- 

 sans present in feces whenever their starch content is taken into account. 



The sulphurous acid of foods bound in organic compounds, K. Farx.-teiner 

 (Ztschr. Unterguch. Nahr. u. GenussmU., 7 {1904), No. 8, pp. 449-470). — The author 

 studied especially the form in which sulphurous acid is found in fruit products and 

 its union with carbohydrates. 



The formation of sugar from fat, E. Abdebhalden and P. Rosa (Ztschr. Phy- 

 siol. Chem., 41 (1904), No. 4, i>p- 303-307). — Attempts to form BUgar from fat by 

 treating olive oil and oleic acid with sheep liver wen- not successful, but as tin- 

 author notes the experiments reported do not preclude the possibility of such forma- 

 tion in the body. 



The influence of fat in the diet on the renal excretion of ammonia, F. 

 Stkimtz i Zentbl. Tnn. Med., ;', \ 1904), p. 81; abs. in Zentbl. Physiol, 18 (1904), No. 3, 

 p. 85 i. — It was noted that ammonia excretion increased with the amount of fat eaten 

 while sodium and potassium excretion decreased. The experiments wen- made 

 with children and the salt content of the diet was kept constant. 



The dietetic value of the legumes, Mary L. Van Zii.e (Iowa Ayr., 4 (1904 - 

 No. 3, pp. 117 , 118). — A popular summary. 



The influence of external hemorrhage on chemical changes in the organ- 

 ism, -with particular reference to proteid catabolism, P. B. Hawk and \Y. J. 

 < riES Amer. Jour. Physiol., 11(1904 I, No. •?. pp. 171-236). — The experiments reported 

 were made with dogs. The elimination of nitrogen, phosphorus, chlorin, and sul- 

 phur was one of the questions studied. 



The end products of self digestion of animal organs, I, P. A. Levene | Ztschr. 

 Physiol. Chem., 41(1904), No. o, ]>j>. 393-403). — A' contribution to the subject of diges- 

 tion and digestive ferments. 



The final products of autodigestion of pancreas, III, Kutscher and Loijmann 

 (Ztschr. Physiol. Chem., 41 (1904\, No. 4, pp. 332-342).— Experimental data are 

 reported. 



Calorimetric studies of feces, EL LonRiscn (Ztschr. Physiol. <'hrm., 41 (1904), 

 No. 4. pp. 308-320). — In the author's opinion, determining the heat of combustion 

 of feces furnishes valuable data for judging of the utilization of different foods. Ex- 

 perimental data are reported, including the heat of combustion of the food, feces 

 etc., in experiments with man. 



The paths of excretion for inorganic compounds. I, The excretion of 

 strontium, L. B. .Mender and H. C. Thacher (Amer. Jour. Physiol., 11 (1904), No. 

 l,pp.5—16). — The authors' conclusions drawn from the experiments reported follow: 

 "Strontium salts are eliminated to a relatively small extent only by the kidneys, 

 even after direct introduction into the circulation. The excretion in the urine begins 

 soon, and ceases usually within 24 hours. The larger portion of the strontium elim- 

 inated is found in the feces, whether the introduction of the element be per os, sub- 

 cutaneously, intravenously, or intraperitoneally. 



" The place of excretion is apparently restricted to the region of the alimentary 

 tract beyond the stomach. A functional relation to certain phenomena of intestinal 

 peristalsis, etc., is suggested. The rate of elimination is slow, and is apparently 

 influenced by the calcium content of the food. Strontium is found deposited in the 

 tody chiefly in the bones; traces may be met with in the liver and muscles." 



Experiments on the physiological action of the active substances of 

 organs and tissues, A. Pugltjese (Jour. Physiol, et Path. Gen., 6 (1904), No. 3, pp. 

 452-465, dams. 1 ; ). — Results of a number of experiments are reported. 



The retarding of peptic activity by salts, J. Sciiutz (Beitr. Chem. Physiol. ". 



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