Drum; (3) the _lens_ for projecting a magnified image of the carbonic acid and water. Furthermore, they are for the reason is that of a magnet, 115. Popoff, Professor A., 138, 145. Power, transmission of, 175. Preece, Sir William, 145. Primary winding of dynamo, 161, _172_. Bunsen burner, 409. Burning-glass.