paperback. 2 volumes. Illustrated with 4 plates, in-text figures and mathematical formulae. 39; 53 pages. Thin 4tos, original printed wrappers (some chipping along spines; creases; internally fine). Christiania [Oslo]: A.W. Brogger, 1876-1880. Very good copies of these scarce first editions. very good.
Napier Shaw in his history of meteorology (pp316, 319) lists this study as important in the history of meteorological theory.