Sir David was one of the first in England to adopt the electric light. This was about the year 1874, when he found it necessary to make the lamps, switches and other apparatus himself, as those were unobtainable at the time; much of the apparatus in general use to-day has been copied from his models. About 1874-5, he constructed a small electrical road carriage, which was in use a short time only, owing to the trouble of re-charging batteries, as no accumulators existed at that period. Devoting himself largely to scientific investigation he is the author of various works on scientific subjects, such as photographic optical formulæ, photography and electrical subjects, his chief work being his three-volume Electric Light Installations, now entering its ninth edition. Of this work, the first volume on Accumulators was for a great many years the only practical work on the subject. He is also the author of many papers read before scientific societies, including the Royal Society and Royal Institution. He is an original member of the Automobile Club of France and of the Automobile Club of Great Britain, being a member of the committee of the former and member of committee and a vice-president of the latter, and is also an ordinary or honorary member of most of the Continental automobile clubs. He was Mayor of Tunbridge Wells, 1894-5, and High Sheriff of Kent in 1881, and is a Magistrate for Kent, Sussex, Middlesex, Westminster and London.

The connection of Sir David Salomons with the encouragement and development of self-propelled traffic in the United Kingdom, constitutes one of the most important chapters in the contemporaneous history of the automobile. His first step to secure a favorable public opinion for the legislative measures that he proposed was to have an exhibition of vehicles, which took place at Tunbridge Wells, in October, 1895. As a result of this exhibition and a voluminous correspondence thereafter, the newspapers of Great Britain and many of the members of the Houses of Lords and Commons were brought to see the justice of the measures asked for. Next, the Self-Propelled Traffic Association was organized. Sir David Salomons was elected president and the campaign for Parliamentary action was inaugurated and brilliantly and energetically prosecuted. When the bill came before the Commons and the Lords it was substantially supported, but its provisions received a great deal of discussion. Some amendments, particularly relating to the questions of smoke and petroleum use, were attached to it. In the end, however, the act that was passed was generally satisfactory to all interested in the promotion and protection of self-propelled traffic. It has been said that “there has hardly been an act passed containing more liberal clauses and with more unity of action.” Its provisions allow of reasonable travel of all kinds of self-propelled vehicles throughout the Kingdom and the act as a whole is regarded as one of the most notable advances made in this matter during the present generation.

Leon Bollèe

A brother of Amédèe Bollèe, Leon Bollèe has been long interested in the business that bears the family name. In 1896, he brought out a motor cycle that was a type between a cycle and a vehicle. It had two front steering wheels and one front driver. The same type of vehicle has been adopted for light work, such as parcel delivery.

Joseph Guedon

Guedon made his appearance at Bordeaux, in October, 1897, with a four-wheeled wagonette, which he made under the name of the Decauville. His special construction was claimed to very largely eliminate the vibration of the vehicle, and his success can be fairly judged from the results in the past few years. The Decauville cars have been developed and refined to such a point as to be among the best of the French makes, and now have an international reputation.

Rene de Knyff

De Knyff became an enthusiastic automobilist, and with other gentlemen, sportsmen of the nobility, became a great amateur. He was and is still known as the King of Chauffeurs, having won several of the most important races, driving the Panhard cars to victory.

Adolf Clement

Born in 1855.