This excellent hands-on guide by one of the founders of the Boy Scouts of America contains a wealth of practical instruction and advice on how to build everything from a bark teepee and a tree-top house to a log cabin and a sod house. No professional architects are needed here; and knowing how to us...

A student grade architects triangular scale that is divided in 3/32, 3/16, 1/8, 1/4, 1/2, 1-3/8, 3/4, 1-1/2 and 3 inches to the foot. 12 inch scale.