In truth it was a noble lamp—very much like other motor lamps, except that the bulb was, or apparently was, embedded in solid glass. Its principal virtue lay in the fact that it carried its own accumulator, which had to be charged weekly, or the lamp forfeited its title.
Mr. Jelf explained, with the adeptness of an expert, how the lamp was controlled from the dashboard, and how splendid it was to have a light which was independent of the engine of the car or of faulty accumulators, and Bones agreed to try the lamp for a week. He did more than this: he half promised to float a company for its manufacture, and gave Mr. Jelf fifty pounds on account of possible royalties and commission, whereupon Mr. Jelf faded from the picture, and from that moment ceased to take the slightest interest in a
