328 



Bulletin 162, 



we have given below tlie details of the gestation of twenty-one 

 cows that have produced four or more calves, arranged in groups 

 according to the above characteristics. 



Tablk ir. 



./. Cows whose period of gestation has Vjeen fairly uniform 

 and usually markedly longer or shorter than the average. 



Sex of calf. Period of gestation . 



Mo Hie, bom Sept. 25, iSgg : 



Sept. 25, 1891, cow 



Sept. 10, 1892, bull 285 



Sept. 3, 1893, cow 281 



Oct. 14, 1894, bull 283 



Sept. II, 1895, cow 285 



Oct. 24, 1896, bull 284 



Sept. 14, 1897, cow 280 



Sept. 9, 1898, cow 294 



Avg. 285 



284 

 280 

 279 

 282 

 279 

 282 



Avg. 281 



267 

 274 



279 



2S0 



27S 

 278 



Avg. 276 



268 

 278 

 274 



274 

 273 

 275 



Avg. 274 



