Moreover Sir William Siemens may fairly be described as the creator of electro-horticulture. Some experiments which he made early in 1880 led him to the conclusion that the electric light could influence the production of coloring matter in leaves, and promote the ripening of fruit at all seasons of the year, and at all hours of the day and night. In the following winter he put these conclusions to the test of experience on a large scale at his country house, Sherwood, near Tunbridge Wells, and the results obtained were communicated to the British Association at York in 1881, in a paper, the value of which was recognised by its receiving the rare distinction of being printed in full in the annual report. Some photographs, which he kindly allowed me to take, represent the difference between three kinds of corn grown under ordinary conditions, and the same corn, under the same conditions, with the added stimulus of the electric light from sunset to sunrise. He came to the conclusion that, although periodic darkness evidently favors growth in the sense of elongating the stalks of plants, the _continuous_ stimulus of light was favorable to a healthy development at a greatly accelerated pace, through all the stages of the annual life of the plant, from the early leaf to the ripened fruit. I have left until the last any notice of a field of work which the Messrs. Siemens may be truly said to have made peculiarly their own, viz., the electrical transmission and distribution of power; for I firmly believe that in the future, although not perhaps in the near future, the practical consequences of this will be such as are little dreamed of now; and this opinion is, I know, held by men far more competent to judge than I am.