Download PDF by J. R. Partington: A History of Chemistry. 1. Theoretical Background

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Xxi— xxiii); ed. E. , excellent index); R. , Munich, 1895-7-1900. : ed. , F. Adams, The Genuine Works of Hippocrates, 2 vols. 1849; J. Chadwick an^W. N. Mann, The Medical Works of Hipi^crates, Oxford, 1950; Works, ed. and tr. W. H. S. , 1923 (i, ii), 1927 (iii), 1931 (iv), with valuable essays and notes. , Guinet, Isis, 1926, viii, 87; A. ): in refs, the eds. are denoted by Foes (Fo), Fuchs (Fu), Jones (J), Kuhn (K), Littre (L), Vander Linden (V). On Hippo- ' crates see J. C. G. Ackermann, Institutiones Historiae Medicinae, Niimberg, 1792 (BM 550.

In a ‘mixture’ (/Ltiyju,a, migma, or /xety/xa, meigma, really what we call a ‘compound’), the individual things cannot be distinguished, but they are there and influence the whole. Aristotle* says Anaxagoras taught that ‘every particle is a m ixture (niyfjui) in the same w ay as the whole (d/xoio)? rw iravriy. Everything has in it seeds o f everything else, ‘all is in all’ , a panspermia (navanepnia), yet one material usually predominates. T h e prim ary matter is an amalgam (/uyfia, (xelyfia) o f all kinds o f seeds.

I, ii*, 1220,1228. 25 T€ TrdvTOiv x/3i7fiaTaiv)’ . ^ Anaxagoras assumed that at first the most heterogeneous substances were everywhere commingled. ) worked upon it by a very rapid vortex motion (Treptx^/jctv), beginning in a point and spreading from this. * W ater was separated from air, earth from water, and from earth stones (e/c Trj? yrj^ \L6oC), by the action o f cold {ifwxpov). ® T h e ‘elements’ separated were not pure and unmixed. T h e vov? * Plato* said that ‘Anaxagoras made no use of reason and did not give the true causes for the regular arrangement of individuals, but proposed air, ether, water, and other unsuitable things as causes’; he introduced vou?

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A History of Chemistry. 1. Theoretical Background by J. R. Partington

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