"In the middle of the nineteenth century chemists began to concern themselves with the systematisation of the results of the study of organic compounds, and something like a theory of organic chemistry gradually took shape. From this period we may date the attempts at expressing the internal nature, constitution, and relations of substances which, step by step, have culminated in our present representations of the structure and spatial arrangement of molecules."
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History of Chemistry (Thorpe)
History of Chemistry by Sir was written in 2 volumes: Vol. I. From the Earliest Times to the Middle of the Nineteenth Century (1909); and Vol. II. From 1850 to 1910 (1910).
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