ANIMAL PRODUCTION, 995 



The relationship of blood supply to secretion, -with special reference to 

 the pancreas, (). INIay {Jovr. PltyxioL, iW [1904), No. 5-6, pp. 40O-4IS, jigs. 9).— 

 l'",xi>e!inu'nts with dogs and cats, which are reported in detail, led to the conclusion 

 tliat there is no direct relationship between the rate of secretion of pancreatic juice 

 and the extent of the blood supply of the pancreas. Secretion was found to continue 

 fnr some time after complete cessation of the pancreatic circulation. 



The proteolytic activities of the pancreatic juice, W. M. Bayliss and E. H. 

 Staklim; {Jour. PJii/slo/., SO {190S), No. 1, pp. 01-83). — Noted from another publica- 

 tion (K. S. Pv., 15, p. 7!t8). 



Concerning tryptic digestion, II. P. Wkiss {/A^chr. rhysiol. Chnii., 40 {1904), No. 

 5-6, pp. 480-491). — The effect of a number of salts and other substances upon tryptic 

 digestion was studied. Alkali salts of the halogen acids exercised only a slight effect 

 upon tryptic digestion, the effect of sodium chlorid being the most marked. Sodium 

 oxalate diminished the digestibility more than sodium chlorid. The sulphates also 

 exercised a greater effect than the chlorids. Borax was without effect, while sodium 

 phosjihate had a favorable effect. 



Investigations on the proteolytic enzyms of the spleen of the ox, S. G. 

 IIedin {.Jour, rin/siol., 30 {1903), No. 2, 2>p- 155-175). — According to the author's 

 investigations the spleen of the ox includes 2 proteolytic enzyms an «-protease, acting 

 only or principally in an alkaline medium and a //-protease, acting only or mainly 

 in an acid medium. Both t'uzyms were obtained combined and nncond)ined with 

 nuclein sulistances. In the former case they were not soluble in weak acetic acid. 

 Ox serum was found to contain antibodies of the (v-protease, but not of the /i-protease. 



On the presence of the proteolytic enzym in the normal serum of the ox, 

 S. (i. IIedin {.Jour. Phydol., 30 {1903), No. 2, pp. 195-201). — The serum of the ox was 

 found to contain a weak proteolytic enzym, active in an alkaline medium. The 

 properties of this enzym were studied. 



Concerning the relation betAveen molecular -weight and physiological 

 action in the case of the higher fatty acids. I, Myristic and lauric acid, Ij. F. 

 Meyer (Zt.^chr. PlujKtol. C'heiii., 40 (IH04), No. .5-6, jip. 550-564)-— ^^a was to be ex- 

 jiected from theoretical considerations tlie fatty aciils could not entirely replace fats. 

 In experiments with a dog fatty acids with a lower inolecular weight than palmetic, 

 stearic, and oleic acid prevented the cleavage of protein to some extent. Judged liy 

 the author's results, mvristic and lauric acid are to be considered as nutrients. 



The heat of combustion and physiological value of nutrients. IV, Com- 

 position and energy value of meat feces, J. Fkentzel and M. Schkeuek {Ardi. 

 Allot. V. I'ltijsioL, PJii/xiol. Aht., 1903, pp. 460-479; abs. in Cliem. Ccnlbl., 1904, I, No. 3, 

 pp. 199, 200). — The elementary composition and energy value of feces were studied 

 in exj)eriments in which dogs were fed meat. 



Breeding of live stock in Belgium {Jour. Ikl. Agr. and Fisheries [London'], 11 

 {1904), No. 1, pp. 21-25). — A brief summary, leased on a recent pul)lication of the 

 Belgium Department of Agriculture. 



Feeding farm animals {Iowa Agr., 4 {1904), No. 5, pp. 189-196). — A summary 

 and discussion of feeding stuffs, rations, and feeding standards. 



East Friesian animal husbandry and herds, H. Gross and A. Ellerbroek 

 {l)(iH fMfric.'iiscJw Zuchlgebicl und .seine Zuclden. Leipzig: Richard C. Schmidt A Co., 

 1903, pp. I]'^ 87, Jigs. 29). — The feeding, care, and management of East Friesian 

 cattle, horses, and sheep are discussed. 



Zootechny: Cattle, P. Difflotii {Zootechnie: Bovides. Paris: J. B. Bailliere it 

 Sons, 1904, pp. VIJI+ 450, pis. 40, Jigs. 67).— The general i)rinciples of cattle breed- 

 ing, cattle raising for milk production and for meat, races of cattle, and other topics are 

 treated of in this volume, which constitutes a handbook of available information on 

 the subject. It is included in the series entitled Encyclopedie Agricolc. 



