THE Daily Mail Ideal Home exhibition at Olympia. which was opened by Mrs. Stanley Baldwin on March 29 and will remain open until April 29, is, as usual, a remarkable tribute to the influence science now exerts on the equipment of up-to-date houses. Thanks to the use of gas and electricity, the investigations of the chemist, physicist and metallurgist, the duties of every housewife are steadily being lightened and the comfort and convenience of everyone increased. The gradual improvement in the quality of food and in its preparation, and in all connected with lighting, heating and ventilation is indeed remarkable. New metals, new materials and new designs, and the application of scientific methods are seen on every hand. The exhibition occupies the Grand Hall, the National Hall and the Empire Hall, and in the first of these is an admirable and beautiful scheme of decoration which includes, as its outstanding feature, a portion of an immense rainbow composed of no less than 700 ft. of neon tubes, fitted up by Messrs. Venreco, Ltd.