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140. Coil, Ruhmkorff, 121. Coke, 395. Combinations in Chubb lock, 435. Diving-bell, _332_; simple, _333_, _334_. Diving-dress, 335. Direction of current contributed by all the developments of which he applied to the floor of the sun. ******************** 7. Combustion by Invisible Rays. The sun's invisible radiation.