Units of measurement in France before the French Revolution 4 parts in one million) than the "pied" used in France. According to the law of 19 Frimaire An VIII (December 10, 1799), Traditionally, the French pound ("livre") was defined as the mass of exactly of a French cubic foot of water. When the kilogram was defined, the knowledge that a "pied du Roi cube" filled with water masses exactly 70 French pounds was apparently lost. According to the traditional (cubic foot) definition, one "livre" would have been about 489.675 grams. According to the kilogramme definition, one "livre" was about 489.506 grammes. The difference is about 0.035%. However, a small
Pied tamarin the pied tamarin from areas of its historical distribution. There are therefore multiple threats to the long-term survival off the pied tamarin that stem from habitat destruction and from interspecific competition. The pied tamarin's body measures 20.8–28.3 cm.; including the tail it measures 33.5–42.0 cm. Males weigh 428 grams ("n" = 4). Its life expectancy is approximately 10 years in the wild. Individuals live in groups of 2 to 15 members with little intra-group competition. Average group size in the Reserva Florestal Adolpho Ducke is 4.8 individuals per group ("n" = 41), and other areas around Manaus reported mean group