EXPLANATION OF THE ILLUSTRATION 
Prare XLII. Cobs of an eight-rowed maize re- 
sembling the modern Mexican race, Harinoso de 
Ocho. A, An acid-eroded cob of modern Mandan 
Flour: B-E, Cobs from Swallow Cave, Structures 
land 2; F, Cob from Slab Cave. Natural size. 
