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-piping Apparently, the Left Branch Condition is absent from Russian. The second example illustrating variation in pied-piping across languages is from German. Relative pronouns in German at times have the option to pied-pipe a governing "zu"-infinitive when they are fronted, e.g. The a-sentence has the relative pronoun "das" pied-piping the zu-infinitive "zu lesen" to the front of the relative clause, whereas this pied-piping does not occur in the b-sentence. Since both variants are acceptable, pied-piping in such cases is optional. In English in contrast, pied-piping in such constellations is impossible, e.g. "*the book which to read I tried" and "*the book