Smithsonian Report 1 ''''7 Kempton 



PLATE 8 



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CORN COBS SHOWING HOW BURNING REDUCES THE SIZE. 

 The cob at left from a commercial variety had 16 rows of kernels. The charred cob in the cent" ;^as 

 Mentical wi h that at the left before bufning. The two charred cobs at '^e "£U w-f Veco^^red f^om 

 a refuse heap in the Chaco Canyon of New Me.xico and are approximately a thousand jears old. (Nat- 

 ural size.) 



