Sundials Their Construction and Use Author:R. Newton Mayall, Margaret W. Mayall Clearly written, easy-to-follow instructions for constructing a sundial on almost any surface and in virtually any position, with information on selecting appropriate materials, making Standard Time dials, and laying out hour lines. Dial furniture, portable sundials, constructing a heliochronometer, and other subjects also covered. Over 60 illus... more »trations.« less