The Catholic World, Vol. 18, October, 1873, to March, 1874Note 271 — THE CATHOLIC WORLD. VOL. XVIII., No. 108.—MARCH, 1874.[249] (continued 2)Reading editionBalfour Stewart, Lessons in Elementary Physics, P. 101.◇Copy noteReturn to THE CATHOLIC WORLD. VOL. XVIII., No. 108.—MARCH, 1874.[249] (continued 2)