[48] "Lettre de Cochin, Secrétaire perpétuel de l'Académie, au Sieur François," 26th November, 1757. [49] Before giving himself up almost exclusively to the practice of aquatint, Debucourt produced a large number of engravings in colour: "Le Jardin" and "La Galerie de Bois au Palais Royal," the "Promenade aux Tuileries," "L'Escalade," and so forth. We know the ardour, verging on mania, with which these prints, albeit of little value from an artistic point of view, are now collected. [50] This important publication contains, in four sections, the most remarkable pictures and sculptures of the Louvre, as it existed after Napoleon had enriched it with masterpieces from every school. Begun in 1802, it was continued till 1811. [51] This fine cathedral, burnt with so many other churches in the great fire, was 690 feet in length, 130 feet broad, and 520 feet high at the top of the spire. [52] The tear-shaped pieces of glass (Lachrimæ Vitreæ), which resist hard blows applied at the thick end, yet fly to pieces the moment a fragment is broken off the fine end, were first brought to England by Prince Rupert, and are called popularly "Prince Rupert's drops." [53] This print represents a tall, powerful-looking man, standing with naked sword in one hand, and holding up in the other the head of St. John the Baptist. [54] Other names given to mezzotint out of England are: Schwarzkunst, black art; La manière anglaise, L'incisione a foggia nera, engraving in black fashion or manner. [55] This engraver must not be confused with John Keyse Sherwin, whose line engravings produced a century later are well known. [56] This Club was instituted in 1703, the year after the accession of Queen Anne, to promote the Protestant succession, the members meeting at the "Cat and Fiddle" in Shire Lane, Fleet Street, kept by Christopher Kat, from whom it took the name. The particular size known amongst artists as Kit-cat, just below the waist and not quite three-quarter length, also acquired its name from this series of portraits, which were painted their particular length to suit the walls of Tonson's villa at Barn Elms. [57] John Riley, Jonathan Richardson, Michael Dahl, John Closterman, John Vanderbank, and Thomas Hudson. [58] The date of McArdell's birth is often erroneously given as 1710 instead of 1728-9 according to the above authority. [59] James Walker must not be confused either with Anthony and his brother William, or with the stipple and mezzotint engraver William Walker of the present century. James Walker's prints are not numerous, a great number of his plates and prints having been lost from the foundering of the vessel which was bringing them back to England from Russia, where Walker had lived for seventeen years, having been appointed in 1784 engraver to the Empress Catherine.