EXPLANATION OF THE ILLUSTRATION 
Prare XLIV. Kernels from several caves in north- 
western Mexico. A, Dark Cave, Level 1; B, Olla 
Cave; C, Slab Cave; D, Tau Cave; EK, Dark Cave, 
Level 6. Note one large kernel of an eight-rowed 
maize in A. Many of the kernels in B, C and D, 
resemble those of the modern Mexican race, Cris- 
talino de Chihuahua. Natural size. 
