374 THE NATURE AND TREATMENT OF 



has continued to give milk ever since, varying from seven to 

 sixteen quarts per day, according to the season. At the pres- 

 ent time she averages about ten quarts per day. The quality 

 of the milk is superior, and peculiarly adapted as a diet for 

 young children. Several cases have occurred under my own ob- 

 servation, where children accustomed to use common cow's milk, 

 and seeming to be suffering from some unknown cause, have 

 improved immediately on the use of the milk from the spayed 

 cow. This fact being established, a good reason is given why 

 every family having children, and keeping cows, should have 

 the operation performed upon one of them. 



" My cow begins to increase in flesh, and I presume the 

 quantity of milk will decrease proportionately. But I see no 

 reason why she should not continue to give milk a year or two 

 longer, at the end of which time she will be in a superior con- 

 dition for beef, and as such will command the highest market 

 price. " Yours truly, J ." 



A gentleman of Brookline, Mass., writes me as follows : — 



" Boston, June ^th, 1859. 



"Dr. Dadd : — My native cow, " Bessie," upon which you 

 performed the operation of spaying in June last, just one year 

 since, has produced since that time an uninterrupted flow of 

 milk, of the finest flavor and richest quality, from nine to fif- 

 teen quarts daily, according to the season of the year and the 

 quality of the food given her ; and, strange to say, my fear 

 that she would gradually but certainly grow fat, and her milk 

 proportionately decrease, has not been realized, as she is now 

 leaner than when the operation was performed, notwithstand- 

 ing that she has been fed in the most liberal manner. 



" Where families have young children, and keep but one 

 cow, I consider it a duty they owe to their children to have 

 her spayed ; as such milk, from the nature of things, must be 

 more nutritious. As far as one year's experience goes, I 

 should say it is very desirable for any family keeping but one 

 cow, to keep her in this condition. 



« Yours, etc., W ." 



