Is built of logs (Fig. 132), of stones, of sod, or of logs filled with sods or stone (Fig. 131), and topped with clay (Figs. 130 and 132). The clay top being wider at one end than the other, on the plan of the well-known campfire (Fig. 129), is made with stones and sometimes used when clay is unobtainable.
The advantage of the altar fire and the matasiso is that the cook does not have to get the backache over the fire while he cooks. All of these ovens and fire-places are suitable for more or less permanent camps, but it is not worth while to build these ovens and altar fire-places for quick and short camps.
It is proper and right in treating camp cooking that we should begin with the most primitive methods. For when one has no cooking utensils except those fashioned from the material at hand, he must, in order to prepare appetizing food, display a real knowledge of woodcraft.