240 CERTAIN ABORIGINAL REMAINS, BLACK WARRIOR RIVER. 
process of alteration, and a consideration of the chemical composition, as given in 
your analyses, I am inclined to regard the stone as a diorite. This, however, must 
be accepted with a certain amount of allowance, for the reasons before stated." 
With a reasonable degree of certainty, then, we can pronounce the vessel from 
the low mound north of Mound R to be of diorite, a rock so hard that the making 
of the bowl by aboriginal methods must have been a task indeed. 
We are indebted to Mr. James A. Anderson, whose kindness we have ac- 
knowledged before in this report, for a geological map of Alabama, made by Prof. 
E. A. Smith, State Geologist. It is seen by this map that the middle eastern part 
of the State is, geologically, of igneous and metamorphic rocks, so that the vessel 
or the material to make it, as the case may be, had, of necessity, no great distance 
to come. 
Ете» West or Mouxp R. 
Immediately west of Mound R is a cultivated field having considerable slope 
in places. А tree of recent growth іп this field has some of its roots about a foot 
above the present surrounding level, thus showing what destruction to cemeteries 
prolonged cultivation must have wrought at Moundville. 
Considerable digging was done in this field, and several burials were met with 
in addition to a number of disturbed bones. 
А skeleton at full length on the back, lying just below the surface, had, at the 
FIG. T Rn 1. Field west of Mound R. Fig. 173.—Vessel No. 2. Field west of Mound R. 
h 
iameter 5 inches.) (Diameter 3.75 inches.) 
