1072 EXPERIMENT STATION RECORD. 



day. The nitrogenous constituents of tlio riition were then increased to what 

 he considered the limit of tolerance, 500 gui. meat and 140 gm. cheese, and 

 after a preliminary period of 9 days an experiment covering 4 days was ma<le. 

 Although the diet furnished 32.7 gm. nitrogen per day, nitrogen equilibrium was 

 not reached, there being an average daily loss of 1.1 gm. nitrogen. 



Gelatin as a substitute for protein, P. Rona and W. Muller {Ztsclir. 

 PlU/sioI. Cliriii., .10 (/.907), yn. -'/-.T, pp. 263-273). — In the experiments reported, 

 which were made with dogs, gelatin was supplemented by tyrosin and tryp- 

 tophan, and confirmed the opinion that gelatin nitrogen may replace 20 per 

 cent of the i)roteid nitrogen of the diet. The adding of the amido acids (tyrosin 

 and tryptoi)han) did not increase the substituting value of the gelatin. 



Has the amount of soluble nitrogenous compounds in wheat flour an 

 effect' uiDon baking value? W. P.kemek {Ztsclir. riitr)-siir]h Xalii: ii. (rnnissiiitl.. 

 13 {1901), No. 2, pp. 69-7 Jf). — The experimental data reported indicate that it 

 is doubtful whether the soluble nitrogenous constituents affect baking quality. 



The influence of lecithin upon the action of digestive ferments, S. 

 KfJTTNEB (Ztschr. I'hi/siol. Chem., 50 {1907), No. 6, pp. ■!f72-Ji96, clgm. 1). — In 

 some cases lecltliin increased and in others diminished the action of both peptone 

 and pancreatic ferments. No explanation of this was found, but the author 

 states that his experiments ai*e to be continued. 



The excretion of sodium chlorid and nitrogenous material through the 

 skin, ScHWENKENDECHER aud i^piTTA {AicJi. E.vpt. Path. II. PlmniKikoL. ')0 

 {1906). pp. 2S.'i-300: ahs. in Vhriii. Zciithl., 1907. I. No. 11, p. ,S32). — According to 

 the authors nearly the same quantities of sodium chlorid and nitrogen are ex- 

 creted through the skin, the value for each being about ().?>?> gm. for 24 hours in 

 the case of a healthy man lying in bed. If excessive secretion is induced by heat, 

 by pilocarpin, or by certain diseases, the excretion of sodium chlorid is dimin- 

 ished to 0.05 per cent. 



The transformation of formic acid and formates and their elimination, 

 C. Fleig {Conipt. Rend. Acad. Sci. [Paris], llJf {1907), No. 7. pp. ^<SVi-3S',S').— The 

 formation of carbonates from formates in the animal body under different con- 

 ditions was the subject of the author's investigations. 



Cooking utensils injurious to health, O. Schutte {Purr Products, 3 {1907). 

 No. Jf. pp. 163-169). — Possible dangers from the use of metal and other cooking 

 utensils are spoken of with special reference to conditions which exist in dif- 

 ferent countries. 



ANIMAL PRODUCTION. 



Practical details of vital significance in tlie utilization of corn fodder. 

 Silage from dried corn fodder, A. T. Neale {Delaware tSta. Rpt. 1903. pp. 

 36- 'fO). — Brief statements are made regarding the steam husker and fwdder 

 shredder and as to the air-blast elevator and its use in making circular stacks 

 and ricks. Tests were undertaken to determine approximately the completeness 

 of separation by the air blast of the blade and top fodder from the coarser 

 portions of the stalk, but were not carried out to the author's entire satisfac- 

 tion, though in one instance a separation into light and lieavy portions, i. e., 

 into blades and coarser material, was accomplished. 



Formerly good results were obtained locally by feeding cut fodder packed into 

 boxes, moistened with hot water, and allovi'ed to stand for 24 hours. " The con- 

 centrated feeds, sa,y cot'ton-see.d meal, can be mixed with this mass and one of 

 the reasons for purchasing bran can thereby be avoided." 



This method is too inconvenient for general use, but it suggested the possibility 

 of making silage from dried fodder, and several successful experiments are 

 reported on the conversion of dried corn fodder into silage by the addition of 



