Electricity as a Messenger (Rambles in Science series)
Undated. 64pp, eight black and white plates (inc. frontispiece). Printed paper-covered boards; tipped-in photograph on front, green titles on front and spine. Bumped bottom corners and spine ends. Sun faded spine. Illustrative endpapers Internally neat, clean, bright and tight. 12mo. Black and white in-text line-drawings.
