478 EXPERIMENT STATION RECORD. 



The difference between light and dark meat for invalid diet, J. R. Offer 

 and E. Rosenquist {Berlin. Klin. Wchnschr., 36 [1899), pp. 937-9;V>, 968-970, 1086, 

 1087; rev. in Sd. Amer., 82 {1900), No. 18, p. 276).— The total nitrogen, nitrogen of 

 extractives, and nitrogen of meat bases, were determined in different kinds of fish, 

 fowl, fresh meat, and preserved meat. The total nitrogen and nitrogen of extract- 

 ives were also determined in raw and fried veal. Light meat is often said to be 

 preferable to dark meat in special diets, but no constant difference in the kind or 

 amount of nitrogenous materials present was observed which would in the author's 

 opinion warrant this belief. 



The effect of light and dark meat in cases of chronic kidney disease, 

 A. Pabst {Berlin. Klin. Wrhnachr., 87 {1900), pp. 547-550). — Both sorts of meat were 

 found to be equally satisfactory under the conditions studied. 



On the behavior of olive oil in preserving fish, O. Klein {Ztschr. Angew. 

 Clieiii., 1900, pp. 559, 560; '(6.s. in 7A»chr. Untersndi. XaJtr. v. Getmii.vntl., 4 {1901), No. 

 14, p. 646). — -A study of the specific gravity, iodin number, etc., of oil used for sar. 

 dine manufacture and taken from old and freshly prepared cans. 



Concerning the extractives in muscles, W. Gulewitsch and S. Amiradzibi 

 {Phys^ioloyisfe Russe, 3 {1900), No. 26-30, pp. ii^-i/.!?).— Analytical work on a l)ody 

 which the authors call "carnosin" is reported. 



Liectures on the physics of organic metabolism, E. Dit Bois-Reymond ( T o?'- 

 leKum/t'ii i'lhfrdie Phy.^il: des orgaui^cheri Stoffirfc}ii<eh. Berlin: A. Ilir.trliirdld, 1900, pp. 

 208, fiiji^. 26). — These lectures, which are edited by E. Du Bois-Reymond, treat of 

 the physical processes involved in the metabolism of living things — transfusion, 

 emulsion, capillarity, osmosis, and similar topics l)eing considered. 



Experimental investigations vrith man on the effect of muscular ■work 

 upon the consumption of food material, and the value of different nutrients 

 as sources of muscular energy, H. X. Heineman {Ardi. Plnisiol. \_Pfli'iger'\, 83 

 {1901), No. 10-12, pp. 441-476). — Using the respiratory quotient apparatus and the 

 methods elaborated by Zuntz and his associates, a study was made of the different 

 nutrients as sources of energy, the special object being to determine whether the 

 nuti'ients replace each other in direct proportion to their heat of combustion. In 

 connection with the work, the hourly excretion of nitrogen was studied. 



Investigations on the source of muscular energy, J. Frentzel and F. Reach 

 {Arcli. I'hy.vdl. [PfU'cjer], 83 {1901), No. 10-12, )>p. 477-508).— A number of experi- 

 ments which are similar in purpose and method to those noted al)ove. 



Concerning protein cleavage and gain during muscular work, W. Caspari 

 {Ardi. Phy.vol. [Pfliujer], 83 {1901), No. 10-12, pp. 509-539) .—The income and outgo 

 of nitrogen was studied with a dog, with special reference to the question of protein 

 in relation to muscular work. It was found that when the diet was constant and a 

 considerable amount of muscular work was performed there was a continual gain of 

 nitrogen in the body. 



Muscular work and over-feeding w^ith protein, K. Bornstein {Arrli. Physiol. 

 [Pfli'ujer'], 83 {1901), No. 10-12, pj). 540-556).— The author was himself the subject 

 of experiments similar in purpose to those noted above. The respiratory quotient 

 was studied as well as the income and outgo of nitrogen. According to the author 

 the experiments show that the normal body when overfed with protein and at the 

 same time performing muscular work, is capable of gaining protein without gaining 

 fat. 



Concerning the value of different nutrients as sources of energy, N. Zuntz 

 {Arch. Phy.vol. [Pfli'iger], 83 {1901), No. 10-12, pp. 557-571).— \ theoretical discus- 

 sion ])ased on the 4 preceding investigations. 



Ureine, W. O. Moor {PhysiologiMe Russe, 2 {1900), No. 26-30, pp. 128-131).— The 

 author believes he has isolated a new compound from urine, for whicli the name 

 "ureine" is proposed. 



Concerning Moor's ureine and its physiological properties, .\. Ki;i..iabko 



