In gas laws, Mariotte's law (TR:13), aka “rule of Mariotte” (Maraldi, 1709) or 'law of Mariotte', also called Boyle’s law or "Boyle-Mariotte’s law", depending, states that ‘the pressure of an ideal gas at constant temperature varies inversely with volume’.
History
In 1676, Edme Mariotte, French physicist, in his Discourse on the Nature of Air, is said to have recognized Boyle’s law (1669), in the statement that ‘the volume of a gas varies inversely as the pressure’. [1]
References
1. (a) Mariotte, Edme. (1679). Discourse on the Nature of Air (Discours de la nature de l’air). Michallet.
(b) Privat-Deschanel, Augustin, and Everett, Joseph D. (1897). Elementary Treatise on Natural Philosophy (ch. 19: Boyle’s (or Mariotte’s) Law, pgs. 166-). D. Appleton.
(c) See also: Preface to Peter Tait’s Thermodynamics (pg. iv).