DAIRY FARMING DAIRYING, 477 



Experimental contribution to tlie question of the relation between the 

 placenta and activity of the mammary gland, 11. Ledeseb and E. Pkibram 

 (Pfliiffer's Arch. Physiol., 134 {1910), No. 9-10, pp. 531-5U, pi. 1).— Intrave- 

 nous injections of fresh placental extracts stimulated the action of the mam- 

 mary gland in goats. After a few days the effect was wealcer and the extract 

 had to be more highly concentrated. The entire effect was lost in 2 or 3 weeks. 



Contribution to the knowledge of individual cow's milk, O. Mezger, K. 

 FucHS, and H. Jessek (Ztschr. Untersiich. Nahr. u. GcnussmtL, 19 (1910), No. 

 12, pp. 720-725). — Analyses are reported which show the variations in chemical, 

 physical, and biological constants of the milk from the same cow. Deviations 

 from the normal are discussed. 



Yeast in milk and milk products, W. Dombrowski (CentU. Bakt. [etc.'], 

 2. AM., 2S {1910), No. 12-15, pp. SJiS-J/OS, pis. 2). — Yeasts were found present 

 in all samples of milk and milk products. The Torula group were more fre- 

 quent than those belonging to the Saccharomyces aud Mycoderma groups. The 

 activities of the yeasts were not limited to alcoholic fermeutatiou, as they were 

 found to produce colors and flavors, while others showed no fermentative activ- 

 ity whatsoever. Idethods of distinguishing the different species that grow in 

 pure cultures and their adaptability to lactic acid, salt, and concentrated sugar 

 solutions are described in detail. 



Numerous references to the literature are given. 



Two cases of ropy milk, C. Babthel (E. Landtbr. Akad. Hamll. och Tidskr., 

 1,9 {1910), No. 6, pp. 516-519; CentW. Bakt. [etc.], 2. Abt., 28 {1910), No. 25, pp. 

 611,-617). — The cause of the trouble was found to lie in the presence in one 

 case of Bacterium lactis viscosiis, isolated by Adametz, and in the other of a 

 species belonging to the aerogenes group. 



Examination of milk from a health standpoint, F. H. Lamb (Quart. Bill. 

 Ohio Bd. Health, 2 (1910), No. J,, pp. 2J,2-2't6) .—K critical discussion of the 

 technique employed in determining the temperature, specific gravity, and the 

 content of fat, sediment, aud bacteria. 



Milk in its relation to infant mortality, J. H. Landis (Quart. Bui. Ohio 

 Bd. Health, 2 (1910), No. J,, pp. 21,6-251). — A consideration of the reduction of 

 infant mortality in a number of large cities, due to an improved milk supply. 



An outbreak of milk-borne scarlet fever, J. R. Hutchinson (Pub. Health 

 [London], 21, (1911), No. J,, pp. 11,3-11,8). — An investigation of this epidemic 

 seemed to indicate that it was caused by a mild attack of scarlet fever in an 

 attendant who unwittingly infected the milk either when acting as a milker 

 or a can washer. The disease was apparently contracted in a very mild form 

 by two others in the house who assisted in the conduct of the milk trade. 



An outbreak of scarlet fever, F. Dittmae and J. P. McGowan (Pub. Health 

 [London], 21, (1911), No. 1,, pp. 138-11,2). — ^A case was investigated where milk 

 was apparently the cause of spreading scarlet fever, but a human source of 

 infection of the milk was not discovered. There was a teat eruption in a num- 

 ber of cows during the height of the outbreak but there was no evidence that 

 it was the cause of the scarlet fever. 



Butter, A. McGill (Lab. Inland Rev. Dept. Canada Bui. 219, pp. 19). — 

 Analyses of 211 samples of butter collected in June aud July, 1910, are reported. 



A statistical contribution to the knowledge of the composition of butter 

 in Holland and northern Russia, M. Feitzsche (Ztschr. Untersuch. Nahr. 

 u. Genuss7ntl., 20 (1910), No. 7, pp. 1,09-1,1,8, figs. 16; abs. in Rev. G&n. Lait, 8 

 (1910), No. 18, pp. 1,25, 1,26). — A compilation and tabulation of the physical and 

 chemical constants of butter as reported from official sources. 



On an average, in Holland butter the Reichert-Meissl number was about 28, 

 but somewhat higher in April and lower in October. The index of refraction at 



