168 EXPERIMENT STATION EECORD, 



Behavior of phytin in the organism, O. Horner (Biochem. Ztschr., 2 {1901), 

 pp. J,2S-434; abs. in Jour. Chem. Soc. [London], 92 {1907), No. 532, II, p. 118).— 

 From experiments with dogs it was concluded that 35 per cent of the phos- 

 phorus of phytin was absorbed. Similar results were obtained with rabbits, but 

 the experiments were not complete. 



The formation of glycogen in muscle, R. A. Hatcher and C. G. L. Wolf 

 {Jour. Biol. Chem., 3 {1901! ), Xo. 1, pp. 25-34, pi. 1, fig. 1). — According to the 

 authors' summary of their elaborate investigations, " glycogen is not formed in 

 the perfusion of muscle by blood containing saccharose. Muscles rendered free 

 from glycogen by starvation iind strychnin do not form glycogen either from 

 glucose or from saccharose. Glucose does form glycogen in muscle. The content 

 of glycogen in symmetrical muscles is practically alike." 



The fixation of creatin in muscle, F. Urano {Beitr. Chem. Physiol, u. Path., 

 9 {1901), No. 3-.'f, pp. lijJf-llo. figs. 4)- — The experiments reported showed that 

 living muscle differed marlicdly from dead muscle in respect to the possibility 

 of removal of creatin by dialysis, practically all of the creatin in the fresh 

 muscle being in a form which could not be thus separated. When muscular 

 tissue is cooked, free creatin is rapidly formed and much the same result is 

 noted when the muscular tissue is kept on ice. It would seem therefore that 

 some of the post-mortem chemical changes, grouped under the head of rigor 

 mortis, are related to the differences in the way the creatin is bound to the mus- 

 cular substance. Apparently in the living tissue the creatin is an integral part 

 of the muscle protoplasm. 



Creatinin and the reactions of sugar in urine, H. McLean {Bio-Chem. Jour., 

 2 {1901), No. -J, pp. 156-113). — As shown by the experimental data reported, 

 "creatinin is the substance in normal urine which most markedly interferes with 

 Fehling's reaction in the presence of small amounts of sugar. Creatin. if 

 present, has a similar, though less marked effect." 



It is owing to the influence of creatinin that " normal urine reduces Fehling's 

 solution after prolonged boiling, and clears up many reactions in which a pre- 

 cipitate appears after boiling for some time with Fehling's solution." 



On diurnal and nocturnal variations in the excretion of uric acid, J. B. 

 Leathes {Jour. PhgsioL. 35 {1906). No. 1-2. pp. 125-130. dgms. 2).— The low 

 output of uric acid and creatinin which was observed during the night " must 

 be the expression of a diminished functional activity in some other organ or 

 organs than the kidney. Nor does it seem probable for the same reason that the 

 explanation is to be found in diminished blood pressure." The author states 

 that experiments are now being carried on with a view to identifying the func- 

 tions associated with the output of uric arid. 



ANIMAL PRODUCTION. 



Licensed concentrated feeding stuffs, 1907, F. W. Woll and G. A. Olson 

 {Wiseonsin Sta. Bui. lJf9, pp. 19-25). — A list is given of 86 brands of concen- 

 trated commercial feeds licensed for sale under the State law, together with 

 their guaranteed protein and fat content. Some general suggestions are made 

 for the purchase of concentrated feeds. 



Comparative value of commercial feeding stuffs, V. Kenner {Vrtljschr. 

 Bai/er. Landir. Rat., 11 {19o6). No. J,, pp. 8.2-)-N.?.S ) . — The author attempts to 

 calculate on a money basis the comparative value of different feeding stuffs. 



The substituting value of different concentrated feeding stuffs, L. Grandeau 

 {Jour. Agr. Prat., n. ser., 13 {1901), No. 16, pp. //<S.5--}S7). — It is frequently nec- 

 essary or desirable to substitute one concentrated feed for another in rations 



