In the Alps, Tyndall studied glaciers, and especially glacier motion. His explanation of glacial flow brought him into dispute with others, particularly J. D. Forbes. Much of the early scientific work on glacier motion had been done by Forbes, but Forbes at that time didn't know of the phenomenon off regeletin which was discovered a little later by Michael Faraday. Regelation played a key role in Tyndall's explanation and he felt the credit for describing glacier motion belonged to many. Tyndall commented: "The idea of semi-fluid motion belongs entirely to Louis Rendu; the proof of the quicker central flow belongs in part to Rendu, but almost wholly to Louis Agassiz and Forbes; the proof of the retardation of the bed belongs to Forbes alone; while the discovery of the locus of the point of maximum motion belongs, I suppose, to me.” Tyndall's book is divided into Two Parts: the first is chiefly narrative, and the second chiefly scientific. In the first part, Tyndall describes the role of an Alpine explorer and the everyday challenges as well as the scientific approaches taken to acquire accurate data. In the second part he explains and classifies his data on glaciers and the dynamics of movement of the glaciers. Two glaciers are now named in his honor. Tyndall Glacier located in Chile and Tyndall Glacier in Colorado, as well as Mount Tyndall in California and Mount Tyndall in Tasmania.