Mar. 24, 1919 Effect of Grain Rations on Growth of Chicks 311 



In conclusion we feel justified in making the following deductions 

 from the results of these experiments : 



(i) The proteins of rice, oats, barley, hominy, and gluten flour are 

 inefficient in promoting normal growth in the White Leghorn chick. 



(2) The results of these experiments seem to indicate that the proteins 

 in the grains mentioned above have a retarding action on the develop- 

 ment of the external sexual characteristics and their functions, which 

 accompanies the arrested growth of the chicks. 



(3) We are unable to account for the apparent weakened vitality of 

 the chicks of lot i, as shown by their weight record and general con- 

 dition. However, we do not attribute it to any toxic action of the soy- 

 bean. 



(4) Baking a grain mixture composed of equal parts of soybeans, 

 wheat, wheat bran, sunflower seed, hempseed and cracked com, moistened 

 with water, materially lowers its efficiency as a food, when all else enter- 

 ing into the diet is sufficient. 



(5) The growth and development of any animal is largely dependent 

 on its individual vitality, and for this reason it would seem desirable to 

 use a large number in experiments on nutrition. 



