Measurements of the Heights and Motion of Clouds in Spitzbergen

Abstract

THE first measurements, as far as I know, of the heights and motion of clouds, by the method described by the Hon. R. Abercromby in NATURE for August 4 (p. 319), and practised at Upsala by M. Hagström and myself since the summer of 1884, were made in the summer of 1883 at Cap Thorelsen in Spitbergen under the Swedish Polar Expedition stationed there, of which the chiefship as well as the guidance of the meteorological observations had been committed to me by the Swedish Academy of Sciences. Those measurements having been made by the same instruments¹ and the same method as the Upsala observations, it will perhaps interest you to see some of the results. The measurements will soon appear in extenso in the publication of the works of the Expedition.