Gravitation.
Becquerel, Jean. 5967.242
Champ de gravitation d’une sphére matérielle et signification physique de la formule de Schwarzschild.
— Paris. Hermann. 1923. iii, 32 pp. Diagrams. 24% cm., in 8s. At head of title-page: Gravitation einsteinienne.
 
This card was printed at the Boston es Public Library, September 18. 1924. Mo0631 — Schwarzschild’s formula. ation. — Einstein, Albert, 1879-. —
Gravitation einsteinienne.