Production of Butter. 



25 



As these experiments 



as guides to a sound conclusion 



consideration for a private individual, 

 are of the utmost importance, 



respecting the subject under investigation, the following extracts 

 are subjoined : — 



The cow which was the subject of experiment was of the short-horn breed, 

 and the period that had elapsed since calving unknown. When the experi- 

 ments were instituted she was in good milking condition. In order to estimate 

 the average amount of milk, it was measured several days previous to the experi- 

 ments, during which time she subsisted upon after-grass, the meadow being about 

 half a mile distant from the cow-house. 



October 



Evening's Milk. 

 Quarts. 



5 



5 . 



4i . 



5 



5i . 



Morning's Milk. 

 Quarts. 



4* 



5 



5 



4 



4 



The weather was fine for the period of the year, but the nights being rather 

 cold, directions were given that the cow should he driven to the house, and 

 remain there during the night. In the morning she was put out to grass, but 

 brought back in the evening. On the evening of the 9th the analyses were 

 commenced, and were followed up for successive days. In every case the 

 specimen of milk analysed was taken from the milk pail after the cow had been 

 thoroughly milked, and the milk well stirred. 



1st day. The cow fed in the meadow upon after-grass during the day, was 

 driven home to the cow-house in the evening ; the milk then obtained amounted 

 to four quarts ; specific gravity, 1-034. 



1 1 • 128 grammes* of milk gave — • 







In 100 parts 



Casein 



•611 . 



5-4 



Butter 



•404 . 



3-7 



Sugar of milk 



'429 . 



3-8 



Ashes 



•068 . 



0-6 



Water 



9-616 . 



86-5 





11-128 



100-0 



The animal received nothing to eat during 'the night, consequently the 

 milk of the morning must have been derived from the previous day's food. The 

 milk measured four and a half quarts ; specific gravity, 1*032. 



15 "280 grammes yielded- 



Casein 



Butter 



Sugar 



Ashes 



Water 



•610 

 •864 

 •468 

 •091 

 13-247 



15-280 



In 100 parts 



3-9 

 5-6 

 3-0 

 0-5 

 87-0 



100-0 



2nd day. The object of this day's experiment was to discover whether an 

 increase of butter would be procured by feeding the cow with after-grass in the 

 stall. It refused, however, to eat this food, and being removed from its com- 



* A gramme equals 15*434 English grains. 



