BECQUEREL, Jean. Le principe de relativité et la théorie de la gravitation - Leçons professées en 1921 et 1922 à l'Ecole Polytechnique et au Muséum d'Histoire Naturelle. 

Paris, Gauthier-Villars et Cie, 1922.

8vo (245x159 mm), ix-342 pages.  binding : Quarter morocco, spine in six compartments lettered in gilt. Original printed wrappers bound in. Binding signed "Lavaux". 

First edition. Bel exemplaire.

The book is composed of two parts: Restricted Relativity and General Relativity - Gravitation and Electricity.

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