IGNITION IN PETROL ENGINES
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perhaps, but sometimes a convenience in hot weather, and always some slight economy of spirit, and lastly, in changing gear, the button may be used at the same moment as the clutch with a very quiet change as the result.
The magneto machine seems thoroughly trustworthy. The writer has carried a spare one for many thousands of miles, but never had occasion to use it, the original one having apparently never failed in a single spark.
