TREATMENT OP BREEDING COWS. 253 



Two hundred and eighty days is given by some writers as the 

 average time; others state it at two hundred and eighty- four. 

 We, one year, kept an accurate account, on our own farm, of 

 upwards of fifty cows, consisting of thorough bred Short-horns, 

 Herefords, Devons, and their grades, and common ones. "We 

 found no average difference in the time of one kind from another, 

 and in casting up, and averaging the time of them all, we found 

 it to range from two hundred and sixty-eight to two hundred 

 and ninety-one the average being two hundred and eighty- 

 four days. 



