A Compendium of Useful Information for the Practical Man/Indian Lore/Indian Pottery

Pottery Making by the Luisenos Indians
The only tools used in pottery making are a flat piece of wood and a smooth pebble of suitable size. Pottery is baked by merely digging a pit and filling it with dry cow-dung, among which the vessels are placed. The dry bark of trees was formerly used, wood not making a sufficiently hot fire. The clay used is thoroughly kneaded and tempered, and strips or coils of it are gradually added to the edge of the growing vessel.

The culture of the Luiseño Indians By Philip Stedman Sparkman