DAIITS FARMING DAIRYING, 



Possibilities of profitable cows on the farm, A J. Glove] inn. Rpt. Tnd. 

 Dairy Assoc, 15 l 1905 . pp. 56-66). Thia summarizes the results of farm tests of LO 

 dairy herds. Of 145 cows of which records for 2 years were obtained, the best com 

 produced 7,190 lbs. of milk and 128 Lbs. of butter, and the pooresl t,560 lbs. of milk 

 and 158 lbs. of butter. Somewhat detailed reports are given of two of the herds. 



Investigations on the fat-free solids in fractional milkings, 1 •". Lai i erw \i.i> 

 I Milchw.Zentbl, U 1905), No.9, pp.885- jOO), The author discusses the data published 

 by Swoboda (E. S. R., 16, p. 71) and others and reports original determinations. 



When calculated in percentages of tin- fat-free milk or milk serum, the solids-notr 

 fat were found in thegreal majority of cases to be constant in the different portions 

 of the milking. The variations in the constituents of the sohds-not-fat (casein, albu- 

 min, milk Bugar, and ash ) were of an unessential nature and, from a practical stand- 

 point, entirely insignificant. The hope of obtaining by means of fractional milking 

 a milk more nearly approaching human milk in composition, as, for instance, one 

 richer in albumin, is, therefore, considered entirely without foundation. 



On the relations between the method of milking- and the composition of 

 the milk, F. Krull (Mitt. Landw. Tnst. Leipzig, 1905, No. 7, pp. 107-180). The 

 literature of this subject is reviewed and original investigations are reported in detail. 



Relations between the method of milking and the composition of the milk were 

 found to exist only so far as the fat content of the milk from the different quarters 

 of the inMer was concerned. The percentage of the other milk constituents remained 

 practically constant. Any increase in the yield of milk and fat by any particular 

 method was considered only apparent, since lower results were obtained by the suc- 

 ceeding method employed. 



Variations in the fat content of the milk observed when different methods were 

 used were believed to be due to purely mechanical causes, principally the contrac- 

 tility of the udder, the amount of agitation, and changes in tension due to the 

 removal of milk. Variations in the fat content of the milk bore no constant relation 

 to the method of milking employed. 



Sampling- milk for composite tests of individual cows, II. A. Hopper I Illinois 

 StQ. Qirc. 90, /'/>. 5, fig. 1). — Directions are given for this purpose. 



The value of the nitrate reaction for detecting- the adulteration of milk 

 with water, J. Adobjan [Ztschr. Landw. Versuchw. Oesterr., 8 i 1905), No. 9, pp. 846- 

 851). — Observations on this BUbjecl are reported from which the author concludes 

 that the nitrate reaction can not always be depended upon as an indication of water- 

 ing, inasmuch as the presence of dirt in milk may give the reaction. 



It may also be obtained when the milk cans are washed and nol dried before 

 using. Furthermore the addition of water free from nitrate- can nol be detected in 

 this way. The method, therefore, can not be depended upon to give more than a 

 suspicion of the existence of adulteration which should he continued by more accu- 

 rate analytical data. The method is, therefore, suitable for use only by the analyst 

 in connection with other method-. 



On bodies in normal and pathological milk serum which react with 

 /i-naphthalin-sulphochlorid, R. Stritter ( Milchw. Zentbl., 1 ( 1905), X". J", pp. /'/'/'- 

 447). — The author was unable to identify positively the presence of an amino com- 

 pound or a body reacting with /tf-naphthalin-sulphochlorid in the serum of normal 

 milk, although it was considered probable that such a nitrogenous substance may 



have been present in extremely small quantities. Further experiments with the 

 milk of diseased animals are in progress. 



Investigations on the determination and the variation of casein in human 

 milk, G. Patkin and I.. DEVAL(Ann. Chim. Analyt.,10\ 1905), A'-. //. pp. ./.'/- I 



Determination of dirt in milk, H.Wellee (Ztschr. Untersuch. Nahr. u. Genussmtf., 

 10 (1905), No. 10, pp. 591-596). — The method used by the author consists in diluting 

 50 to 100 cc. of milk with an equal quantity of hot distilled water, filtering through a 



