Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. The rapid progress in explosive motor design, and the adaptation of this class of prime movers to a vast extent for almost every want for small and intermediate power purposes in all parts of the world, has made a demand for the publication Of more extensive details and descriptions of motor working parts, and especially of the hereto fore troublesome conditions experienced in converting the fuel of explosive combustion into its best form for economical consumption for power, and its reliable ignition and combustion. With this View the Author has revised the former editions of this work and added much new matter that shows progress in design, especially in the atomizing and vaporization of fuel ele ments, together with extended discussions on the management and care of explosive motors, with fully illustrated and described methods of ignition by the electric current and its generation. The illustrated details of new Gas, Gasoline and Oil Vapor Motors and their parts, newly introduced, are in such proportions, together with the table of sizes of parts of motors of various powers, has been made so clear that almost any mechanical engineer or amateur draughtsman should be able to make the working drawings for an explosive motor for any kind of fuel in use for such purpose. The new fuel, Alcohol, and its combination with gasoline for motive power is making an extended and economic exhibit in Europe and only requires legal regulation and freedom from revenue tax to make it a most acceptable material of explosive power for motor service in the United States. The great increase of late in the number of motor builders with improved and special designs of motors for vehicle, launch and yacht propulsion, and as auxiliary power for yachts and fishing boats, has been the means of largely increasing the range of usefulness of this modern power. Its adaptation to the successful operation of bicycles has become a fact and is shown by illustrated descriptions of the latest models.

The rapid progress in explosive motor design, and the adaptation of this class of prime movers to a vast extent for almost every want for small and intermediate power purposes in all parts of the world, has made a demand for the publication Of more extensive details and descriptions of motor working parts, and especially of the hereto fore troublesome conditions experienced in converting the fuel of explosive combustion into its best form for economical consumption for power, and its reliable ignition and combustion. With this View the Author has revised the former editions of this work and added much new matter that shows progress in design, especially in the atomizing and vaporization of fuel ele ments, together with extended discussions on the management and care of explosive motors, with fully illustrated and described methods of ignition by the electric current and its generation. The illustrated details of new Gas, Gasoline and Oil Vapor Motors and their parts, newly introduced, are in such proportions, together with the table of sizes of parts of motors of various powers, has been made so clear that almost any mechanical engineer or amateur draughtsman should be able to make the working drawings for an explosive motor for any kind of fuel in use for such purpose. The new fuel, Alcohol, and its combination with gasoline for motive power is making an extended and economic exhibit in Europe and only requires legal regulation and freedom from revenue tax to make it a most acceptable material of explosive power for motor service in the United States. The great increase of late in the number of motor builders with improved and special designs of motors for vehicle, launch and yacht propulsion, and as auxiliary power for yachts and fishing boats, has been the means of largely increasing the range of usefulness of this modern power. Its adaptation to the successful operation of bicycles has become a fact and is shown by illustrated descriptions of the latest models.