FEwkes] MINOR ANTIQUITIES 125 
midway in the length, or of unequal dimensions, with the groove 
nearer one end. A typical hammer of dumb-bell shape is shown in 
figure 27. The hammers shown in plate 57, a, b, are very much worn 
at what was formerly the sharp edge, and the polls are very flat; ¢ is 
much worn down on both ends; d is without groove; and in e the 
groove is inconspicuous. 
Problematical implements.—Under this head may be mentioned the 
long, thin, flat stones (as pl. 58, d), some of which are sharp at one ex- 
tremity and blunt at the other. One of these specimens (0) is broad 
at one end and tapers uniformly, while another (c) is shovel-shaped. 
In this category may be mentioned a broken implement having 
two deep marginal incisions, which, perhaps, should more strictly be 
assigned to objects of the hoe 2am? 
orshovel type. This unique / i | 
specimen (pl. 58, a) ,which is | nN ih 
of slate, has incised mark- ANN 
ings on the flat face. 
Of the specimens figured 
in plate 59 it is probable that 
a and d represent pestles; b, 
f,and i, grinding stones; and g 
and h, pecking stones. The 
purposes for which ¢ and e 
were used are not clear. 
One of the objects(c)shown 
in plate 66 probably served 
as a paint-grinder, while d 
and e of the same plate may 
have been used as pecking 
stones. 
Plummet-like object.—A remarkable stone object (fig. 28) from Casa 
Grande, found deeply buried in the earth covering Compound B, is a 
cylinder provided with an eyelet in the top, like a plumb-bob, the 
whole resembling in form an object of unknown use from Mexico. 
On account of its form it has been suggested that this object was 
employed as a plummet by the ancient masons. Although the valid- 
ity of this theory is regarded as very doubtful, no suggestion is here 
made of the meaning of this most exceptional specimen. 
Tablets.—Certain flat rectangular stones, called tablets, most of 
which are of slate, have smooth margins; the ornamentation of 
their borders varies considerably, in some specimens taking the form 
of parallel lines arranged in clusters. One of these tablets (pl. 60, d) 
is typical of many found in ruins in the Gila-Salt Valley, and suggests 
a pigment slab." 
ine 
i 
== 
Fia. 25. Grooved double-edge ax. 
1 This specimen resembles certain slabs of animal shape, one of which was figured years ago in the 
writer’s report on the antiquities of the upper Gila (see 22d Ann. Rep. Bur. Amer. Ethnol., pp. 185-186). 
