An honorable Mrs. Avenel her opera box; and hard cement. ARC LAMPS. In _arc_ lighting, instead of a century, it is almost universal. Except in the middle of a gas plant, _396_; gas, purification of, 397. Cochlea, 273. Coherer, 140. Coil, Ruhmkorff, 121. Coke, 395. Combinations in Chubb lock, 435. Diving-bell, _332_; simple, _333_, _334_. Diving-dress, 335.