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In was in 1799 that Joseph Proust discovered the law of definite proportions, or Proust's Law. Proust was a French chemist.
Joseph Louis Proust eleborated the Law of definite proportions.
Joseph Proust was a French chemist (1754-1826) well known for the discovery of the law of definite proportions.
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Joseph Proust was a French chemist (1754-1826) well known for the discovery of the law of definite proportions.
Joseph Louis Proust.
Joseph Proust was a French chemist (1754-1826) well known for the discovery of the law of definite proportions.
The French chemist Joseph Proust is generally believed to have been the first person to formulate this theory. Proust's theory may have had it's roots in the work of an Englishman called William Prout, who is credited with having put forward 'Prout's hypothesis'.
Marcel Pagnol died on April 18, 1974 at the age of 79.
Joseph Proust
Joseph Proust