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" "Dalton, the mathematical tutor, following up the lead of Newton, combined the whole of the results of quantitative measurement which had accumulated up to his time, in a comprehensive theory, based on the concept of the chemical atom.
James Riddick Partington (30 June 1886 – 9 October 1965) was a British chemist, mathematician, historian of chemistry, scholar, author and teacher. He was a fellow and council member of the Chemical Society of London and the first president of the Society for History of Alchemy and Early Chemistry.
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It is necessary to guard against a possible danger... of submitting too readily to the result of a so-called "crucial experiment". Very few experiments can, in the nature of things, be really crucial. One so-called "crucial experiment" which decided between Newton's corpuscular theory of light and Huyghens' wave-theory, viz. the relation between the law of refraction and the velocity of light, was not at all decisive.
The earliest applications of chemical processes were concerned with the extraction and working of metals and the manufacture of pottery. ...The irruption of an iron using race or races into Mediterranean sites ...introduced the Iron Age... but many of the oldest arts still survived in almost their original form. The potter, for example, still used nearly the same materials and appliances as Neolithic man.
The Chinese early learned to work in metals; bronze occurs in the 11th-10th centuries B.C., useful iron from about 500 B.C. At a later period they made brass... True porcelain was first made about A.D. 600. They were probably in possession of mercury at an early date, and learnt how to decompose cinnabar into mercury and sulphur, and recompose it from these materials.