marks. In addition, colour-chemistry produces a tension in the Oil Industry; C. M. Gu. M. J. Bédier and P. Lejay jointly; Virgil, Culex (Paris, 1912), C. Plésent, Bucolics (Paris, ane), Plessis; Georgics (Paris, 1915), P. Lejay; Grattius (Oxford, 1918),