Units of measurement in France before the French Revolution (league) had a number of variations, particularly the "aune" (which was used to measure cloth The "loi du 19 frimaire an VIII" (Law of 10 December 1799) states that one decimal metre is exactly 443.296 French lines, or "3 pieds 11.296 lignes de la "Toise du Pérou"". Thus the French royal foot is exactly 9000/27,706 metres (about 0.3248 m). In Quebec, the surveys in French units were converted using the relationship 1 "pied" (of the French variety, the same word being used for English feet as well) = 12.789 English inches. This makes the Quebec "pied" very slightly smaller (about
Pied-piping that is not bolded. The gap marks the canonical position of the fronted expression: In each of the b-sentences, the interrogative word has pied-piped an encompassing phrase with it, whereas each c-sentence is bad because pied-piping has not occurred. These examples illustrate that the pied-piped phrase can be a noun phrase, an adjective phrase, or an adverb phrase, and examples further below illustrate that it can also be a prepositional phrase. Pied-piping occurs in embedded wh-clauses as well: And pied-piping is very frequent in relative clauses, where a greater flexibility about what can or must be pied-piped is discernible: The