62 EXPERIMENT STATION EECOED. 



of interest regarding the preparation of food in quantities and regarding 

 restaurant service. 



The pages are bound together in a loose leaf volume. 



Methods of metabolism experiments with men and animals for the chemi- 

 cal study of food and excretory products, A. Weitzel (Arb. K. Gsndhtsamt., 

 J/S (1912), No. 2, pp. 30Ji-312; abs. in Zenthl. Biochem. u. Biophys., U (1913), 

 No. 13-lJf, p. .'ilO). — A resume of methods employed in the official health bureaus, 

 and similar data. 



The amount of water required by infants, L. F. Meter {Zischr. Kinder- 

 heilk., 5 (1912), No. 1; abs. in Zenthl. Expt. Med., 3 (1913), No. 4, p. 158).— In 

 experiments planned to determine the amount of water required by nursing 

 infants, young infants were fed with concentrated milk to which albumin and 

 sugar had been added and which had a fuel value of 1,200 calories per liter. 



In many cases the body weight remained constant, while it decreased in a 

 few. One liundred fifty gm. of water per kilogram of body weight was found 

 necessary to bring an increase in weight. No conclusive results regarding the 

 metabolism of nitrogen and mineral matters were obtained from comparative 

 experiments in which diets of low and high water content were successively 

 given. 



The regulation of neutrality in the animal body, L. J. Hendeeson (Science, 

 n. ser., 37 (1913), No. 950, pp. 389-395) .—This address, delivered at the joint 

 meeting of the American Physiological Society and the American Society of 

 Biological Chemists, " is concerned with those physiological processes whereby 

 the normal reaction of the body fluids is permanently preserved." The argu- 

 ment is summed up by the author as follows : 



" Within wide limits of amount any acid or base may be poured into the 

 organism, and the reaction will not vary ; nor will it vary if such be produced 

 by the oi'ganism, and this constancy will protect all enzymatic processes, the 

 function of respiration, and the whole distribution of material throughout the 

 body. . . . While life endures, the dynamical equilibrium of hydrogen and 

 hydroxyl ionizations persists." 



Studies of the excretion of acid, L. J. Henderson and W. W. Palmer (Jour. 

 Biol. Chem., U (1913), No. 2, Proc, pp. XXV, XXVI).— Some of the deductions 

 follow which appear in this summary of a paper presented at the seventh 

 annual meeting of the American Society of Biological Chemists : 



" The ammonia [in urine] appears to be an index of the degree of acidosis 

 only in those cases where ^-oxybutyric acid is produced. 



" The relation between hydrogen ion concentration and total quantity of acid 

 excreted appears to provide an index of the efficiency of the kidney in carrying 

 out the imixtrtant process of acid excretion ; this ' functional test * possesses 

 the advantage that it involves no experinsental interference. 



" We have reached the conclusion that mild states of acidosis are far more 

 common than has been suspected, and that the therapeutic use of alkali in 

 small quantities (until the urine reaches the reaction of blood) is often desir- 

 able." 



Feeding experiments relating to the nutritive value of the proteins of 

 maize, T. B. Osborne and L. B. Mendel (Jour. Biol. Chem., 1^ (1913), No. 2, 

 Proc, pp. XXXI, XXXII). — A summary of a paper presented at the seventh 

 annual meeting of the American Society of Biological Chemists, discussing 

 data previously noted (E. S. R., 28, p. 759). 



On the utilization of ammonia nitrogen in the protein metabolism, A. E. 

 Taylor and A. I. Ringer (Jour. BiM. Chem., IJ, (1913), No. 2, Proc, pp. XXVI, 

 XXVII). — A brief summary of a paper presented at the seventh annual meeting 



