Utiliser "embouchure" dans une phrase

1. Eustache, at the northeast angle of the Halles of Paris, where to-day lies the embouchure of the Rue Rambuteau, have only to imagine an N touching the Rue Saint-Denis with its summit and the Halles with its base, and whose two vertical bars should form the Rue de la Grande-Truanderie, and the Rue de la Chanvrerie, and whose transverse bar should be formed by the Rue de la Petite-Truanderie