TYNDALL, JOHN. - THE GLACIERS OF THE ALPS.

On the Physical Phenomena of Glaciers. - Part I. Observations on the Mer de Glace. Received May 20, - ead May 20, 1858. (+) (Part II:) On the Veined Structure of Glaciers; with Observations upon White Ice-seams, Air-bubbles and Dirt-bands, and remarks upon Glacier Theories. Received Februar 24, - Read February 24, 1859. (2 Papers).

(London, Taylor and Francis, 1859). 4to. No wrappers as extracted from "Philosophical Transactions" 1859 - Vol. 149 - Part I. Pp. 261-278 a. 2 lithographed plates. some small brownspots to plates. + pp. 279-307, textillustrations.

First printing of two classical papers on Glaciers.Tyndall's investigations on glacier actions is based on his work on the influence of mechanical pressure upon manifestations of magnetic force.
"Generalizing from the effects of pressure on slate led him to the sudy of glacial movement..; in turn, glaciers fostered a passion for mountaineering and a fascination for what was to beome his major work - the effects of solar and, later jeat radfiation on atmospheric gases.."(DSB XIII, p. 522).

Order-nr.: 42979