"It has been possible to trace historically back……" — Otto Wallach
"It has been possible to trace historically back to a very early age the taxes which were imposed on medicines, spices and similar substances in German towns. Thus, for instance, one finds that in the year 1500, thirteen, in 1540, thirty-eight, and in 1708, already one hundred and twenty vegetable oils are mentioned."
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Otto Wallach
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8 Quotes by Otto Wallach
Otto Wallach has 8 quotes on this site.
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In organic chemistry, we have learnt to derive from compounds containing only carbon and hydrogen, i.e. from the hydrocarbons, all…
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As soon as chemists have a definite conception of the internal structure of the molecule of an organic compound, they…
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Most of the oils which are valued as scents are mixtures of substances; only the combined effect of these leads…
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As soon as we can wrest from Nature the secret of the internal structure of the compounds produced by her,…
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As soon as science has solved one problem, new ones arise. This is the essence of science, and it applies,…
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One would think that plants belonging to the same genus would always produce identical or at least similar oils. But…
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May the work for the further development of chemical science, which has its strongest roots in this beautiful, strong and…
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