542 



Transactions op the 



and thirty-one pounds ; seventh — three hundred and nine pounds; 

 eighth — ttiree hundred and thirty and one half pounds; ninth — three hun- 

 dred and forty tour and one half pounds; tenth — three hundred and six 

 pounds ; eleventh — two hundred and sixty-five and one half pounds; 

 twelfth — two hundred and thirty-three and one half pounds; thirteenth — 

 one hundred and eighty-four and one half pounds; fourteenth — two 

 hundred and nine and one half pounds; fifteenth — one hundred and sev- 

 enty pounds; sixteenth — one hundred and eighty-one pounds; seven- 

 teenth — two hundred and sixteen and one half pounds; eighteenth — 

 eighty-nine pounds. Total in seventy-two weeks — five thousand one 

 hundred and seventy : seven and one half pounds. This is over eight and 

 one half times her own weight at the end of the period, and probably 

 over ten times her weight at its commencement. Taking two and fifteen 

 one hundredths pounds milk as equal to a quart, she gave two thousand 

 four hundred and eight quarts. I am confident that for the average of 

 her milking period, two Winters and one Summer, fifteen pounds of her 

 milk would make a pound of butter, anrd that she actually produced be- 

 tween her two calvings three hundred and forty-five pounds of butter. 

 To apply a more severe test, we will take her yield during the year 

 before her second calving, beginning April twent3 T -second, eighteen hun- 

 dred and seventy-two. Her yield was three thousand one hundred and 

 sixty pounds of milk, or (by the above computation) two hundred and 

 ten and two thirds pounds of butter. She had no extra care, and was 

 never in hiij;h condition." 



The late Andrew Robeson had a small herd of unusually good qual- 

 ity. His experiments concerning them were communicated to the 

 American Agriculturist (June, eighteen hundred and seventy-three), in the 



following tabular statements: 



Animals. 



Weight, April 23, 1873. 



Note. — Rosemary, Zillah, and Cannie are heavy with calf. 



