Meteorological Observations and Essays

The genesis of Dalton s law of partial pressures can be traced back to his Meteorological Observations and Essays (1793). There, he stated that every gas in a mixture acts as an independent entity and there is no chemical combination between them in, for example, the air. Dalton amplified his ideas in papers published in 1801, but experimental evidence was lacking. It was as a result of further speculations about the nature of air that the chemical atomic theory was bom (Chapter 6). 

Dalton, 1793] J. Dalton. Meteorological Observations and Essays (London), 1793. 

A (2). Second ed., printed verbatim from the first, apart from an appendix of notes, pp. 197-244, a list of Dalton s publications, and the omission of the quotation from Horace on the t.p. Meteorological Observations and Essays. By John Dalton, D.C.L., F.R.S.. . . Second Edition. Manchester printed by Harrison and Crosfield, for Baldwin and Cradock, London. 1834. Pp. xx, 244, [iv]. 

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