DALTON, John (1766-1844). I. "Experiments and Observations to determine whether the Quantity of Rain and Dew is equal to the Quantity of Water carried off by the Rivers", in: Memoirs of the Literary and Philosophical Society of Manchester, volume V, part 2, March 1799, pp.346-72. Manchester: R. & W. Dean, 1802. Hand-coloured map.
II. "Experiments and Observations on the Power of Fluids to conduct Heat", ibidem, April, 1799, pp.373-97.
III. "Experiments and Observations on the Heat and Cold produced by the Mechanical Condensation and Rarefaction of Air", ibidem, June 1800, pp.515-26.
IV. "Experimental Essays on the Constitution of Mixed Gases; on the Force of Steam or Vapour from Water and other Liquids in Different Temperatures, both in a Toricellian Vacuum and in Air; on Evaporation; and on the Expansion of Gases by Heat", ibidem, October 1801, pp.535-602. Folding engraved plate.
V. "Meteorological Observations", ibidem, February 1802, pp.666-79. 8° (223 x 132mm). Contemporary calf-backed boards, uncut (spine a little rubbed).
FIRST EDITION of the first four 'Experiments' in which is expressed Dalton's Law, i.e. that in a mixture of gases every gas acts independently.