DIRECTIONS FOR FIRELESS COOKER--NO. III

(Double Cooker)

Materials required: One long box and two square boxes; the long box must

be large enough to hold the other two and still leave two inches of

space all around them; five and one-quarter yards of sheet asbestos one

yard wide; two covered agate pails to be used as cooking pails; and

about one yard of denim or other material.

Ontario Teachers' Manuals: Household Science in Rural Schools · 第 370 / 373 题