680 EXPERIMENT STATION EECORD. 



an account of the origin, methods, and results accomplished by this pioneer 

 institution for obtaining a sanitary and cheaper niilli supply. 



The precipitation of iron from the dairy water supply (Molk. Ztg. [Hihles- 

 heiiu], 25 {1911), No. 58, pp. 1095, 1096). — ^A method is described for removing 

 iron from water when present in such quantities as to be detrimental to dairy 

 products. 



The mammary glands, E. Beesslau {Erget. Anat. it. Entwicld., 19 (1909), 

 pp. 275-349, figs. 11; abs. in Zool. Zentil., 18 (1911), No. 9-10, pp. 311, 318).— 

 A bibliography and review of investigations since 1898 on the development of 

 the mammary glands and of their origin in the lower orders of mammals. 



On the mode of production of lactose in the mammary gland, D. N. Paton 

 and E. P. Cathcart (Jour. Physiol., ^2 (1911), No. 2, i)p. 179-188, charts 2).— 

 The injection of phloridzin into a goat reduced, the amount of milk secreted. 

 The amount of lactose in the milk was also reduced, the lowest output being 

 reached either on the day that the largest output of sugar occurred in the urine 

 or just after this. These experiments are taken to indicate that the glucose 

 of the blood is used by the mammary gland in the formation of lactose. The 

 question is still unsolved regarding the source of the galactose. 



Some physical and chemical properties of woman's milk, Jeannette 

 PoLENAAR and H. FiLiPPO (Ztschr. Expt. Path. u. Ther., 9 (1911), No. 1, pp. 

 138-145; abs. in Ghem. Zentbl., 1911, II, No. 1, p. 39). — ^The results represent a 

 14-day test with woman's milk, in which the Aiscosity, electrical conductivity, 

 and freezing point were determined. 



Between normal and abnormal cases (such as low yield of milk, albuminuria, 

 or acute or chronic diseases) no difference in viscosity could be noted, as in all 

 instances a regular progressive diminution of the viscosity took place. The 

 electrical conductivity was increased in most instances in the abnormal samples, 

 being greatest in the case of diminished milk secretion, and least in the case 

 of albuminuria. In the normal samples a periodic decrease in the electrical 

 conductivity took place during the first week of lactation. 



Contributions to the significance of lime and phosphoric acid in the 

 animal body. — I, Influence upon milk secretion of rations deficient in lime 

 and phosphoric acid, G. Fingerling (Landiv. Vers. Stat., 75 (1911), No. 1-2, 

 pp. 1-52). — Digestion experiments were made with 2 milch goats which were 

 fed rations composed of hay and sesame cake, which are relatively rich in 

 phosphoric acid and lime, as contrasted with a ration of straw, dried-beet chips, 

 gluten, and peanut oil, feeds which are deficient in the lime-phosphorus com- 

 pounds. Starch and salt were added to both rations, and in all cases the 

 rations were so balanced that the percentages of protein and carbohydrates 

 were unchanged. 



The results substantiate the evidence obtained by other observers, that 

 whenever there is an insufficient supply of lime and phosphoric acid in the 

 ration these compounds are withdrawn from the body, but are restored when a 

 change is made to a ration rich in these compounds or when the deficiency is 

 supplied in the form of dicalcium phosphate. If the deficiency continued for only 

 a few days the flow of milk remained normal, but when continued for any 

 length of time it rapidly decreased. The percentages of phosphoric acid and 

 lime in the milk remain practically unchanged. 



The action of animal extracts on milk secretion, E. A. Schaeee and K. 

 Mackenzie (Proc. Roy. Soc. [London], Ser. B, 84 (1911), No. B 568, pp. 16-22, 

 figs. 3). — The authors studied the effect on the secretion of milk of a large 

 number of animal extracts, including those of the placenta, uterus, fetus, pitui- 

 tary body, mammary gland, duodenum, liver, spleen, kidney, thyroid, ovary, 

 testis, thymus, and suprarenal capsules. Both cats and dogs were anesthetized 



