Before this period the streets were lighted only during the four winter months; and on account of the numberless atrocities committed in the night-time, when there were no lights, the Parisians offered to contribute as much money as should be sufficient to defray the expense of keeping the lamps lighted throughout the whole winter. The lamps employed by La Reynie were, on account of their likeness to a bucket, called _lanternes à seau_, and succeeded those invented by one Herault, called _lanternes à cul-de-lampe_. When De Sartines held the office of lieutenant de police, a premium was offered to whoever should discover the most advantageous means of improving the lighting of the streets; and the Academy of Sciences were to decide on the different plans that might be proposed. In consequence of this offer, a journeyman glazier, named Goujon, received a premium of 200 livres, and Messrs. Bailly, Le Roy, and Bourgeois de Chateaublanc 2000 livres. To the last-mentioned gentleman is ascribed the invention of the present reverberating lamps, described by La Vieil, which were introduced in 1766. In a small work, called an Essay on Lanterns, by a society of literary men[448], which, though written to ridicule antiquarian researches and certain persons at Paris, contains some authentic information respecting the lighting of the streets, we are told that reverberating lamps were invented by an abbé P., who therefore, says the author humorously, is the second abbé who can boast of having enlightened the first city in the world. The superiority of these lamps cannot be denied; but, besides their expense, they are attended with this disadvantage when they hang in the middle of the street, that they throw a shade over it, so that one cannot be known by those who pass. In cities also, where people walk principally in the middle of the streets, or where the streets are broad, they are not very convenient, and they occasion a stoppage when it is necessary to clean them. In the year 1721, the lamps in Paris are said to have amounted to 5772; but in the Tableau de Paris, printed in 1760, the number is reckoned to be only 5694, and in the Curiosités de Paris, 1771, they are stated to be 6232. In 1777, the road between Paris and Versailles, which is about nine miles in length, was lighted at the yearly expense of 15,000 livres by the same contractors who lighted Paris. The city of Nantes was lighted the same year; and in 1780 had 500 lamps. Strasburg began to be lighted in 1779.