SEED-FOOD. 33 



facture of buttons, knobs, toys, and other small 

 articles. The same hardening of albumen occurs 

 in the coquilla-nuts of Brazil, and causes them to 

 be in much demand for making door knobs, um- 

 brella handles, and such articles of turnery. 



Besides the substances we have mentioned as 

 being contained in seeds there are others, such as 

 alcohol and certain sugars which are obtained from 

 seeds by inducing chemical changes in their con- 

 tents. To consider these artificial products would 

 lead us too far from our subject, for a proper under- 

 standing of the processes of manufacture would 

 carry us deep into chemistry, and what is more, 

 the substances so produced are not seed-food. 



