SEEDS 57 



tonka beans, opium poppy, castor oil, and croton oil are 

 well-known examples. 



Taste the seeds of oranges, lemons, apples, peach pits, 

 and bitter almonds. 



Caution. Peach pits, orange seeds, bitter almonds, and 

 many other kinds of seeds contain prussic acid, a deadly 

 poison. Hence it is not wise to taste of unknown varieties. 



Some seeds are commercially valuable on account of es- 

 sential oils contained in them. 



Larkspur seeds furnish a poison used to kill lice. 



Stramonium and belladonna are powerful poisons extracted 

 from seeds of two plants of the nightshade family. 



The betel nut yields a narcotic used in the East. 



Pepper, mustard, nutmeg, cola, cardamom, and many 

 other seeds are valued because of oils which yield flavors 

 or spices. . 



Suggestion. Visit a drug store and make a list of seeds 

 used for medicine, flavors, etc. Visit a grocery and make 

 a similar list of seeds used for food. 



