Compare pouce d'eau.
In the area now occupied by the nation of Haiti, colonial period, a unit of water flow, the rate at which water flows through a hole 1 pouce in diameter in a vertical baffle. The head is unspecified. The source below estimates the flow rate at 13 liters per minute.
Moreau de Saint-Méry.
Description Topographique, Physique, Civile, Politique et Historique de la Partie Française de L'Isle Saint-Domingue. Volume 1.
New edition based on a comparison with the original manuscript by Blanche Maurel and Étienne Taillemite.
Paris: Société de L'Histoire des Colonies Françaises, and Librairie Larose, 1958.
The definition is not from Moreau de Saint-Méry, but the scholars who edited the 1958 edition.
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Last revised: 21 March 2015.