VOLTERRA, VITO.

Sur la Théorie des Variations des Latitudes.

Berlin, Stockholm, Paris, Beijer, 1899. 4to. Without wrappers as extracted from "Acta Mathematica. Hrdg. von G. Mittag-Leffler.", Bd. 22, pp. 201-357.

First edition. As the north and south poles, instead of being fixed points on the earth's surface, wander round within a circle of ab. 5o ft. in diameter, the result is a variability of terrestial latitudes generally. Volterra gives an elaborate mathematical analysis of these yearly fluxtuations.

Order-nr.: 39177