First edition, first printing. 174pp, with diagrams, formulae etc in text. Purple cloth-covered boards with gilt lettering on spine. Crown 8vo. Cloth is faded, rubbed and rounded on corners and spine, lightly sunned over spine. Slight lean. Hint of toning on endpapers else internally neat, clean, bright and tight.
Hard to find as a first printing, one of Russell's scarcer first editions. A popular exposition for the interested lay reader of the science of nuclear physics by the mathematician and philosopher, Bertrand Russell.
