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
Clearflight Pied budgerigar mutation over half the body area affected, although the clear areas in cocks tend to be larger than those of hens. The Clearflight Pied gene is located on one of the autosomal chromosomes. There is no known linkage of this gene with any other mutation. There is no universally accepted genetic symbol for either the locus or mutant allele, so the symbol "Pc" for 'Pied, clearflight' will be adopted here for the wild-type allele at this locus, and the symbol "Pc" for the Clearflight Pied mutant allele. Both Taylor and Warner and Martin used just "P" for the Clearflight Pied locus,