DAIRY FAEMING DAIRYING. 2V0 



ses of the milk are reported. The average yield of green cheese per gallon 

 of uiillx fur the year was 1,26 lbs., being lowest in June and highest in February. 



Milk records^ C. Douglas (Trans. Highland and Agr. Soc. Scot., 5. set:, 23 

 (1911), pp. 222-232).— This is the eighth report of the Scottish Milk Record 

 Committee, in which the records of 9,514 cows are discussed. 



Work of the Kiel Experiment Station for dairy products, edited by H. 

 Weigmann (All). Vers. ,S7«<. Molkiv. Kiel, 1909, Nos. 6, pp. 109; 7, pp. 132, pis. 

 9). — This contains two articles on dairy bacteriology which have been noted 

 from other sources, and also the following articles, which consist mainly of 

 descrii)tions of the characteristics of new species of bacteria found in milk : 

 Concerning Armenian matzoon, by H. Weigmann, T. Gruber and H. Huss; On 

 the yellow-brown color of hard cheese, produced by Mieroccoccus chromoflavus, 

 by H. Huss; Morphological-physiological studies on two aroma-forming bac- 

 teria, BariUus cstcrificans and Pseudomotms trifolii, n. sp., by H. Huss; A 

 contribution to the knowledge of bacteria producing the ai'oma of strawberries; 

 Description of P. fragaroidea, n. sp., by H. Huss; On the characteristics of a 

 new species of bacteria isolated from canned milk (Plectridiuni novum), by 

 H. Huss; and Fat-splitting bacteria (Bactridium lypoliticum,n.si).) by H. Huss. 



Does colostrum possess bactericidal properties? M. Bub (Besitzt die Kolo- 

 stralmilch bakterizide Eigcnschaftcn? Inaug. Diss., Giessen, 1910; ahs. in 

 Zcntbl. Gtsam. Physiol, u. Path. Stoffivechsels, n. ser., 5 (1910), No. 21, p. 

 820). — The data have been noted from another source (E. S. R., 24, p. 77). 



[A dairy score card], H. H. Lyon (Hoard's Dairyman, 1^2 (1911), No. 17, 

 p. 569). — This is a card for scoring dairy barns and milk houses which is 

 used by a large condensed milk firm of New York. 



Score card system of dairy inspection, G- M. Whitaker (Hoard's Dairyman, 

 42 (1911), No. 2.'i, p. 761). — A criticism of the score card, noted above. 



The scientific dilution of milk, L. Wainwbight (ilcd. Mag., 20 (1911), 

 No. 3, pp. 158-102). — The difference between cow's and human milk is dis- 

 cussed, and a method is described for modifying cow's milk when used for 

 feeding infants. 



Factors affecting the per cent of fat in cream from farm separators, C. H. 

 EcKLES and H. S. Wayman (Missouri 8ta. Bui. 9-'t, pp. 517-558, figs. i2).— This 

 bulletin reports a series of experiments which were conducted to ascertain the 

 causes of wide variations in the percentage of fat in cream from hand sepa- 

 rators. The conditions covered by the investigations were those which were 

 thought certain to vary on every farm, namely, (1) speed of separator, (2) 

 temperature of milk separated, (3) rate of inflow to separator bowl, (4) rich- 

 ness of milk separated, and (5) acidity. It was assumed that the percentage 

 of fat in cream is influenced by the amount of water or skim milk used to flush 

 out the bowl at the end of the run and by the adjustment of the cream screw. 

 Five different makes of hand power, centrifugal cream separators were used. 



In a preliminary test with water 80 per cent more water was delivered from 

 the skim milk tube when the separator was being fed its full capacity than 

 under the ordinary rate of inflow, showing that the skim milk tube does not 

 commonlj' run to its full capacity. 



The usual explanation that by turning the cream screw nearer the center 

 richer cream is obtained because the richer cream found near the center is 

 held not to be the full explanation. It is pointed out that turning the cream 

 screw nearer the center causes an increased outflow from the skim milk tube 

 and a relatively smaller amount of and richer cream. 



In testing the effect of speed of separators each machine was tested at the 

 speed recommended by the manufacturers, and at three-fourths and one-half 

 this speed. It was found that with one exception, set for thin cream, the 



