MICHELSON, ALBERT. - PREPARING THE MICHELSON-MORLEY EXPERIMENT.

Sur le mouvement relatif de la terre et de l'éther.

(Paris, Gauthier-Villars), 1882. 4to. No wrappers. In: "Comptes Rendus Hebdomadaires des Séances de L'Academie des Sciences", Tome 94, No 8. Pp. (473-) 548 (entire issue offered). Michelson's paper: pp. 520-523, 1 textillustr.

First printing of this importent paper in which Michelson corrected an effect on his inteferometer which he had neglected in his first experiment on the ether drag of 1881.

"Michelson himself, on presenting in 1882 (the paper offered) an account of his first esperiment to the Academie des Sciences, acknowledged that he had made an error in his earler report of 1881 and had neglected the effect of the earth's motion on the path of light in the inteferometer arm at right angles to the motion" (Holton "Thematic origins of Scientific Thought", p. 265).

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Order-nr.: 49092