90. (40714). Mortar made from a flat water-worn quartz boulder with a circular depression about half an inch deep. The bottom of this mortar shows evidence of its having been used as a grinding stone previous to being converted into a mortar, or it may have been used for both purposes, as both the paint cavity and the rubbing side show recent use. 91. (40715). Paint mortar of basalt, used for grinding the yellow pigment for ornamenting pottery; about four inches in diameter, cavity about one inch deep, bottom ground flat. 92. (40716). Flat paint mortar, of quartz rock, almost round, about an inch thick, depression quite shallow; used for grinding a pigment of azurite or carbonate of copper, small nodules of which they collect at copper mines. This pigment is used in painting and decorating wooden images and gods. [Illustration: Fig. 353 (40731) (⅓) Fig. 355 (42245) (⅓) Fig. 354 (42266) (⅓) Fig. 357 (40808) (¼) Fig. 356 (41289) Fig. 358 (42272) (½) Figs. 353-358.--Stone Implements from Zuñi.] 93. (40717). Mortar similar to the above, and used for the same purpose. 94. (40718). Paint mortar made from a large irregularly round ferruginous sandstone. Used in pulverizing a reddish pigment for decorating pottery. 95. (40719). Mortar of a globular shape, made from a coarse-grained sandstone, used for grinding or mixing vermilion. 96. (40720). Paint mortar of sandstone. The whole mortar is only about an inch thick; made from a section of an old metate rubber. 97. (40722). Paint mortar of quartzite; blue pigment grinder. Size about four by three inches. This, like many of the flat mortars, has been first used as a rubbing stone and subsequently converted into a paint mortar. 98. (40723). Mortar made from a quartz boulder. 99. (40724). Sandstone mortar. 100. (40725). Paint mortar of sandstone, very flat. 101. (40726). Paint mortar, with oblong shallow depression; sandstone. 102. (40728). Square paint mortar; cavity about half an inch deep; sandstone impregnated with iron. Quartzitic pestle accompanying it. 103. (40729). Paint mortar of quartzite; almost square; depression almost worn through by use; quartz pebble pestle accompanying it. 104. (40730). Small round paint mortar of basalt, with white quartz pebble pestle. 105. (40731). Fig. 353. Paint mortar and pestle of quartz, with a knob on the end, which serves as a handle. This mortar was used in grinding an azurite pigment. 106. (40732). Mortar shaped somewhat like a ladle; the projecting end is provided with a small groove out of which the paint is poured. 107. (40733). Small sandstone mortar. 108. (40864). Paint mortar of sandstone. 109. (40868). Paint mortar of basalt, almost square. 110. (40869). Flat, square sandstone paint mortar; black water-worn pebble for pestle.