60 The Feeding of Animals 



plants were studied, all of which were found to contain 

 globulins. In some the proteids consisted largely of 

 these compounds. The percentage content in certain 

 seeds was determined approximately: 



Globulins in certain seeds 



Per cent Per cent 



Kidney bean 20. Maize 0.4 



Cottonseed meal 15.8 Lentil 13. 



Peas 10. Horse bean 17. 



Lupin 26.2 Soy bean Chiefly globulin 



The seeds of the legumes, as a rule, have the largest 

 proportion of these albuminoids. 



From present knowledge, many seeds appear to have 

 characteristic globulins which are unlike in their chem- 

 ical properties. These have been given names derived 

 from the general names of the species in which they 

 are found. Thus we have amandin in almonds, ave- 

 nalin in oats, corylin in walnuts, phaseolin in several 

 species of beans, glycin in the soy bean, maysin in 

 maize, vicilin in horse beans, vignin in the cow -pea, 

 hordein in barley, and tuberin in the potato. One 

 globulin called edestin appears to be quite generally 

 distributed in the seeds of agricultural plants, ha vine: 

 been found in a larger number than any other proteid 

 yet discovered, including all the cereals, castor bean, 

 cottonseed, flaxseed, hemp, squash and sunflower, 

 though it is not abundant in any one of these. 



The animal globulins of which we have definite 

 knowledge are those that exist in the muscle and in 

 the blood. The names which some of them bear are 

 myosin, fibrinogen, paraglobulin, and, according to 



