This exhibition, organised by the Society of Motor Manufacturers and Traders, Ltd., was held at Olympia from the 19th to the 27th March, 1909.

The aëronautical portion attracted considerable attention, and the Society is to be congratulated on the result of its efforts to interest the public in aëronautical matters.

It is not proposed in these notes to give an account of all the exhibits, but an attempt will be made to describe those in which the members of the Aëronautical Society of Great Britain are more especially interested. Motors are only briefly touched on, as they are discussed in Mr. McKinney's paper.