74 EXPERIMENT STATION EECOED. 



Milking capacities of the Trinidad government farm cows, H. S. Shrews- 

 cuRY (West Indian BuL, 13 {1913), No. 3, pp. 28i-287).— Half-bred zebus pro- 

 duce<l au avernge daily milk yield of 5.G qt., testing 3.37 per cent fat, and are 

 reported as good dairy animals for tbat locality. 



Dairying in Jamaica, H. H. Cousins {Bui. Dept. Agr. Jamaica, n. ser., 2 

 {1913), No. 7, pp. 253-296, pis. 10).— A general treatise on dairying conditions 

 in Jamaica, in wbicli the author outlines methods of improvement of the native 

 stock. It is noted that importations of pure-bred stock are being made from 

 North America. The Guernsey is given preference as a foundation stock for 

 the purely dairy animal, while the Red Poll has proved valuable as a dual pur- 

 pose breed. Analyses of the milk of various breeds and crossbreeds are given. 



Ninth biennial report of the state dairy bureau [for the biennial period 

 ending November 30, 1912] {Bicn. Rpt. State Dairy Bur. Cal, 9 {1911-12), 

 pp, ^0, figs. 9). — A general report of dairying opportunities in California, with 

 statistics on the milk, butter, and cheese output and a list of creameries in 

 operation in the State. 



Quarterly report of the dairy and food commissioner of Virginia, W. D. 

 Saunders {Quart. Rpt. Dairy and Food Comr. Ya., 1913, Mar. -May, pp. 43-^6, 

 50-55, 62-68). — This report includes an inspection of 114 dairies and dairy 

 farms and of a number of creameries, collecting stations, and cheese factories, 

 also the examination of misbranded, adulterated, and otherwise illegal stock 

 feeds. 



Michigan's new milk and cream law, R. G. Kirby {Mich. Farmer, 1^1 

 {1913), No. 8, p. 1, figs. 2). — An account of the new Michigan milk and cream 

 law looking toward sanitation in the dairy and increased purity of the milk. 



Milk and cream testing, H. H. Dean {Ann. Rpt. Ontario Agr. Col. and 

 Expt. Farm, 38 {1912), pp. 70-83). — This continues work previously reported 

 (E. S. R., 27, p. 777). 



In comparison of the results obtained from the sampling of cream for com- 

 posite samples by the aliquot and ounce methods, it was found that on a de- 

 livery of over 1,400 lbs. fat the total difference by the 2 methods was 8.9 lbs. 

 in favor of the ounce method. Open bottle samples of cream gave " results 

 altogether too high and show very forcibly the need of keeping composite bottles 

 tightly stoppered." ComiX)site samples kept in cold storage proved to be in 

 better condition at the end of one month than were those kept at room temper- 

 ature. Contrary to expectation, samples kept in cold storage frequently tested 

 " a higher percentage of fat than did those kept at room temperature," this 

 being probably due to the more accurate sampling possible with this better 

 cream. Comparing daily, weekly, semi-monthly, and monthly tests for accu- 

 racy of results, it is concluded that the last 3 methods " will credit patrons with 

 approximately correct weights of fat delivered, as compared with testing each 

 and every delivery of cream to the creamerj-." Tests of 3 different cream scales 

 indicated that a sample of cream may be tested within about 0.2 per cent of 

 accuracy on a 12-bottle cream scale, irrespective of the number of the bottles 

 weighed at one time. 



Tests with formalin as a preservative in composite milk and cream samples 

 " show that about one-half a cubic centimeter of formalin will preserve a pint 

 sample of milk or cream in good condition for testing for a month. When 1 cc. 

 of formalin was used the tests were not satisfactory unless an extra volume of 

 sulphuric acid was used (20 and 21 cc. instead of 17.5 cc.)." 



It was found that the greatest differences in the cream transported in an 

 ordinary can and a jacketed can was 6° F. in temperature and 0.05 per cent 

 acidity in favor of the cream in a jacketed can. The average difference was 3.6° 

 in temperature and 0.022 per cent acidity. As a rule, there was not sufficient 



