Selden is known as an exceedingly able attorney in his specialty, while his active connection with the extensive reaper and binder litigation, in all of which he appeared prominently, established for him an enviable reputation. Those who have had the privilege of a closer personal acquaintance know of his great fund of scientific knowledge in various arts, as well as his most interesting accumulations of data as a result of his personal researches. Selden is a patentee in other fields beside that of the gasoline automobile and his achievements have been numerous and of exceeding importance. He is also a chemist of more than ordinary ability and has applied himself as a close student to this line of scientific investigation. As a result he has made notable discoveries that, although not yet given to the world, will, it is confidently believed by those acquainted with them, prove to be of the greatest scientific value. SIEGFRIED MARCUS Marcus was an ingenious mechanic. In early life he made dental instruments and apparatus for a magician in Vienna. For his construction of a thermopile he received a prize and to his further credit as an inventor are placed an arc lamp, Rhumkoff coil carbureter, a high candle-power petroleum lamp, magneto-electro machines, a microphone and various other things in many branches of science. [Illustration: SIEGFRIED MARCUS] It is claimed that about the middle seventies of the last century he carried on experiments with a gas engine that had a spring-connected piston rod. He mounted this vertically on an ordinary horse vehicle and connected it directly with a cranked rear axle, carrying two flywheels in place of the regular road wheels. He is said to have made trials of this vehicle at night in Vienna. If this was so he was apparently trying to keep his plan secret and succeeded very well. Aside from general references nothing of importance revealed itself concerning this vehicle and Marcus' experiments with it, until very recently when interest in the historic development of the automobile has stimulated anew investigation into the endeavors of the early inventors. In 1882 the motor work of Marcus was principally preparatory to his new engine construction. It included experimenting with an Otto engine run with petroleum and a vaporizer and electric ignition with magneto. In 1883 he constructed a closed or two-cycled motor and thereafter had engines made in Budapest and elsewhere. One of these motors he put on wheels, but this was abandoned for other ideas that came from his fertile mind. CARL BENZ Born, November 26, 1844, at Karlsruhe, Baden, Germany.