Lot 47: EIFFEL, Gustave (1832-1923). Recherches expérimentales sur la résistance de l'air exécutées à la tour Eiffel . Paris: L. Maretheux, 1907. 2° (320 x 250mm). 3 photographic and 17 lithographic plates, some folding. (Occasional light soiling,

EIFFEL, Gustave (1832-1923). Recherches expérimentales sur la résistance de l'air exécutées à la tour Eiffel. Paris: L. Maretheux, 1907. 2° (320 x 250mm). 3 photographic and 17 lithographic plates, some folding. (Occasional light soiling, a few spots, plate II reinforced at centre.) Contemporary half library cloth over original printed boards, preserving original printed spine (extremities rubbed, somewhat soiled.) Provenance: Gustave Eiffel (presentation stamp on half-title) -- The Society of Engineers (stamps on endpaper and title).

AUTHOR'S PRESENTATION COPY. The present work allowed better understanding of the effects of wind and atmosphere on tall structures. Sold with another presentation copy by Gustave Eiffel: Travaux Scientifiques exécutés a la Tour de trois cents mètres (Paris: 1900). (2)