Report on researches into the composition of ocean-water by H.M.S. Challenger, during the years 1873-1876 / by William Dittmar -- Report on the specific gravity of samples of ocean-water, observed on board H.M.S. Challenger, during the years 1873-1876 / by J.Y. Buchanan -- Report on the deep-sea temperature observations of ocean-water, taken by the officers of the expedition, during the years 1873-1876 -- Report on some of the physical properties of fresh water and of sea water / by P.G. Tait -- Report on atmospheric circulation based on the observations made on board H.M.S. Challenger during the years 1873-1876, and other meteorological observations / by Alexander Buchan -- Report on the magnetical results obtained by H.M.S. Challenger during the years 1873-1876 / by E.W. Creak -- Report on the rock specimens collected on oceanic islands during the voyage of H.M.S. Challenger during the years 1873-1876 / by A. Renard