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1775 |
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(1775-05-01): Studies on platinum
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(1775-05-17): Letter of Parent fils to Lavoisier requesting that Lavoisier send material he has collected from the mineralogical map of France to Dupain-Triel. Lavoisier replies on May 24.
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(1775-05-25): Reading to the Royal Society of three letter of Priestley describing his early work on oxygen.
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(1775-05-30): By a decree of this date (during Turgot's administration) the Régie des Poudres is established in place of the Farm system.
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(1775-07-01): Lavoisier assumes duties as régisseurs des poudres et salpêtres. Régie come into operation.
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(1775-07-01): Letter of Magellan to Lavoisier containing criticism of a manuscript (a memoir on a new method of distillation) which Lavoisier had sent on May 17.
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(1775-07-02): Letter by Turgot announcing Lavoisier will be lodged at the Arsenal.
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(1775-08-17): Letter of Turgot to the Académie urging that a prize to be opffered for the most advantageous process for producing saltpetre.
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(1775-08-19): Five commissioner appointed August 19 for the investigation of saltpetre (Macquer, d'Arcy, Lavoisier, Sage and Baumé). A program for the prize is drawn up by Macquer.
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(1775-09): Begins work on saltpetre. Analysis of "cendres salpetriers" and "cendres de tourbe" (peat ash)
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(1775-09-15): Death of Jean Antoine Lavoisier, father of Antoine Laurent.
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(1775-09-26): Mother liquor of nitre - its decomposition by potash.
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(1775-10): The commissioners rent "une mission en jardin et un grand hangar dans le faubourg St. Denis" in which to perform experiments.
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(1775-10-01): Letter of Lavoisier to l'abbé Baudeau on the King's intention to introduce new means of obtaining saltpetre. Through the church Lavoisier hopes to gain publicity for the plan, which is certain to be popular with the people.
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(1775-10-04): Solution of white zinc oxide in nitric acid.
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(1775-10-28) (1775-10-29): Experiments done at Montigny: minium and sulphuric acid and nitric acid, minium and sulphur etc. Also reaction of sulphurica cid and "huile essentielle" producing a gas which burns a blue flame (CO). Further work on "cendres des
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(1775-10-29): Letter of Perronet to Lavoisier with an accompanying report on d'Auxiron's proposal to use fire pumps for the Seine's waters.
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(1775-11-13): Magellan sends Trudain sheets of Priestley's book Experiments and Observations (vol. 2).
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(1775-11-29): Letter of Lavoisier to Joanin concerning experimental method of producing saltpetre.
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(1775-12-01): Departure of expedition of M. de St. Edmond to India to investigate for the government the manufacture of saltpetre.
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(1775-12-05): Lavoisier offers to give an account of Priestley's book part II.
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(1775-12-15): Letter of Magellan to Madame Lavoisier. Mentions that Priestley has promised to forward the final sheets of vol. 2 of his work on air as soons as they come off the press.
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