Show 7 Indians Popped ed Corn Cora Popcorn was raised by the Indians Indians Indi ladt I ans long before rc Columbus arrived inthe in inthe inthe the Western hemisphere It became an Important commercial crop about 1880 Formerly It was supposed supposed supposed sup sup- posed that the popping of corn was caused by the volatilization of oilin oil oU in hi the grain gram The explosion Is due simply to the formation of ot steam within the tho grain when it is la heated neither air nor volatile oil experts say laY is concerned in the process I Popcorn with a louder pop has been developed I |