DAIRY FARMING DAIRYING. 337 



A lieicl of 8 cows, to whicli the above belonged, was tested morning 

 and niglit for 5 days, the interval between the morning and night 

 milkings being the same. The morning's milk was rielier in 17 cases, 

 the night's milk in 21 cases, and in the 2 remaining cases the morning's 

 and night's milk were the same. 



A number of tests were made of herds ;it home and at fairs. In the 

 tirsr, on a herd of 8 cows, which had only been brought some 3 miles 

 to the fair, the yield of milk was practically the same at the fair 

 grounds as at home, and the average fat content was 0.69 per cent less 

 at the fair than at liome. Two did better at the fair than at home, 

 while with the others the reverse was true. 



The second trial was with 2 Holstein cows which were taken by rail 

 to fiiirs at different places in the State. There was practically no dif- 

 ference between the yield and composition of the milk at home and at 

 the fair. A week later these cows were taken to the Indiana State 

 Fair, and the week following to the Illinois State Fair. At the latter 

 place they were tested. The results show that " there had been a great 

 falling off both in yield of milk and in the per cent of fat, probably due 

 to the fatigue and excitement of the journey." 



The case is mentioned of a Jersey cow which gave 11 lbs. of milk 

 with 10.7 per cent of fat at the fair grounds, and the next morning 

 gave only 8.0G lbs. of milk with 7 per cent of fat. Another Jersey cow 

 taken only a short distance to a fair gave during the night and morn- 

 ing following this 41.13 lbs. of milk with 2.16 lbs. of fat. In a 7-day 

 test the following week the same cow averaged in 21 hours 41.71 lbs. 

 of milk with 1.97 lbs. of fat. 



"At no time during the Iiohih test did her milk contain as high a per cent of fat aa 

 at the fair, although the quantity of milk was about the same iu hoth cases. The 

 yield of fat during the week's test at home was 13.81 lbs. If she had given milk 

 which averaged as rich as her test at the fair showed, she would have yielded 17.22 

 lbs. of fat during the week." 



Cases showing the effects of other irregularities in treatment are 

 mentioned. 



The fat globules in cows' milk, F. W. Woll ( Wisvonsiu ^Sta. l\'pt. 

 1801, pp. ;J23S-J9). — The results are given of microscopic? examinations 

 of the milk of cows in the World's Fair dairy test at Chicago and of the 

 station herd. The work in connection with the World's Fair dairy test 

 was done between August 26 and October 18, 1893. Tlie official sam- 

 ples were used for this examination. Samples of the mixed morning's 

 and evening's milk of the herd were examined daily for 4 consec- 

 utive days, and composite samples coveringl-day periods were examined 

 in the case of the milk from single cows. The results of tliese examina- 

 tions, together with other data relative to the yield of milk and fat and 

 the iiercentage of fat from official sources, are fully tabuhi ted for the 

 90-day butter test, the ^O-day butter test, and the heifer test. The 

 results are summarized, 



