MOETAES MADE OP STONE. 81 



A mortar of hard sandstone, pecked on the exterior surface, and of 

 regular shape, has the rim much worn. In this specimen there is a hole 

 about 2 inches in diameter broken through the bottom, apparently from a 

 blow of the pestle, when in use as a mortar. This hole has not been 

 mended, as was done in one of the preceding examples. 



The measurements are : Greatest diameter, 7.5 inches ; height, exte- 

 riorly, 5.6 inches ; depth of vessel inside, 4.8 inches ; breadth of rim vary- 

 ing from .5 to .8 of an inch. 



A small, fine-grained sandstone mortar, of regular shape, and not flat- 

 tened on the bottom, has the rim sloping outwards, and irregular or uneven, 

 as though accidentally chipped at different times when in use. It is slightly 

 discolored inside by red pigment, and with a few black scales that are 

 apparently asphaltum. This mortar contained, when found, portions of a 

 human lower jaw. 



The measurements of this mortar are : Greatest diameter, 6.1 inches ; 

 height, exteriorly, 2.6 inches ; depth of vessel inside, 1.8 inches ; breadth of 

 rim, .6 of an inch. 



A specimen (Fig. 13, Plate V) of hard, fine-grained, light-colored sand- 

 stone, is regular in shape, with the bottom flattened. The sides are more 

 vertical than is usual with this class of stone vessels. 



The measurements are : Greatest diameter, 6 inches; height, exteriorly, 

 7.1 inches ; depth of vessel inside, 5.4 inches ; breadth of rim, .8 of an inch. 



A marked variation in form is seen in a specimen made of fine-grained 

 and very hard, light-colored sandstone. It is regularly made and much 

 rounder than many others, the greatest diameter being below the opening. 



The measurements, which of themselves explain its peculiarities, are: 

 Greatest diameter, 6.5 inches; at the opening, 4.3 inches ; height, exteriorly, 

 4.1 inches; depth of vessel inside, 2.4 inches ; and with no distinct rim. 



A second example of this form, but smaller, of fine-grained and very 

 hard, light-colored sandstone, is equally well made. 



The measurements of this specimen are : Greatest diameter, 5.5 inches ; 

 at the mouth, 3.8 inches ; height, exteriorly; 3.3 inches ; depth of vessel 

 inside, 1.8 inches; no distinct rim. Presented by D. A. Miller, Esq. , 



A mortar of the more usual form, of the same material as the majority 

 6 c I 



