32 Journal of Agricultural Research voi. xvii. no. i 



It appears from this experiment that the greatest factor in growth is 

 quantity of milk ; hence, a high-milk-producing ewe is more valuable than 

 a low one. The inherited capacity for growth, however, must not be 

 overlooked. As to the relative merits of the breeds, it is not the purposeof 

 this investigation to enter upon a discussion. To draw conclusions 

 upon such a small number of ewes in each breed would be unfair. It 

 was the aim of this experiment to make the investigation as fair as possi- 

 ble to all breeds studied, and the authors desire to emphasize clearly 

 the fact that results upon the different breeds are given wholly as an 

 attempt to correlate milk yields, their composition, and their relation to 

 growth. The results are not given with an idea of comparing the desira- 

 bility or undesirability of the breeds included in this experiment, but 

 rather for the purpose of presenting to the farmer and student information 

 in regard to features of certain well-known breeds that have to do with 

 utility and adaptation to certain specific purposes. For example, the 

 man interested in the growiih of lambs for early marketing would be inter- 

 ested in a breed that by its yield of milk, and possibly certain other fac- 

 tors, made the greatest average growth of lambs. Another purpose of 

 the experiment is to stimulate the interest of investigators and students of 

 animal breeding in the field for the improvement of certain breeds with 

 reference to factors having to do with profit for the grower. There 

 might even be room for a new breed that would possess all the desirable 

 and highly useful factors of some of the breeds included in this experiment. 



