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LaoPhil, you've got some beauties, especially the International stamp exhibition, Le Havere, France, 1929!
Thank you very much, IndianGoldEagle, for your warm words!
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Pierre Eugene Marcellin Berthelot (1827 - 1907) was a French chemist and Republican politician noted for the Thomsen–Berthelot principle of thermochemistry. He synthesized many organic compounds from inorganic substances, providing a large amount of counter-evidence to the theory of Berzelius that organic compounds required organisms in their synthesis. Berthelot was convinced that chemical synthesis would revolutionize the food industry by the year 2000, and that synthesized foods would replace farms and pastures.
Centenary birth of Berthelot 1927, French Cinderella.
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