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1775 |
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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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1776 |
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(1776-01-25): Priestley publishes his Observations on respirations, and the use of the blood … Read at the Royal Society, Jan. 25, 1776
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(1776-02-11): Dissolution of mercury in nitric acid
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(1776-02-12): Collection of gas from water.
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(1776-02-17): Lavoisier drafts a notes on those substances which are always in gaseous state.
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(1776-03): First version of memoir on animal respiration.
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(1776-04): After move to the Arsenal, resumes experiments. Mixes five parts of residual air in which mercury was calcined with one part of dephlogisticated air. Test mixture with candle which "y brule comme dans l'air."
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(1776-04-17): At the Académie "M. Lavoisier a lu un écrit." This is probably the extracts on the cold of winter 1775.76 prepared for the Easter public session of the Académie.
P-V, 1776, fol. 123.
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(1776-04-20): At the Académie "M. Lavoisier a lu un Mémoire sur l'existence de l'air dans l'acide nitreux et sur les moyens de décomposer et recomposer cet acide."
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(1776-04-24): At the Académie in connection with the reading of Lavoisier's memoir of April 20 "M. le duc de Chaulnes qui était présent a promis de faire voir les moyens qu'il a imaginés pour rendre les expériences plus faciles."
P-V, 1776, fol. 126.
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(1776-04-28): Experiments on the specific gravities of gases.
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(1776-10-13): Experiments with Trudaine. Calcination of metals and properties of air in which metals have been calcined. Tested by exposing birds.
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