insisting that the procession move forward as a whole. Edison and his electric light were happily more fortunate than other men and inventions, in the relative cordiality of the reception given them. The merit was too obvious to remain unrecognized. Nevertheless, it was through intense hostility and opposition that the young art made its way, pushed forward by Edison's own strong personality and by his unbounded, unwavering faith in the ultimate success of his system. It may seem strange that great effort was required to introduce a light so manifestly convenient, safe, agreeable, and advantageous, but the facts are matter of record; and to-day the recollection of some of the episodes brings a fierce glitter into the eye and keen indignation into the voice of the man who has come so victoriously through it all. It was not a fact at any time that the public was opposed to the idea of the electric light. On the contrary, the conditions for its acceptance had been ripening fast. Yet the very vogue of the electric arc light made harder the arrival of the incandescent. As a new illuminant for the streets, the arc had become familiar, either as a direct substitute for the low gas lamp along the sidewalk curb, or as a novel form of moonlight, raised in groups at the top of lofty towers often a hundred and fifty feet high. Some of these lights were already in use for large indoor spaces, although the size of the unit, the deadly pressure of the current, and the sputtering sparks from the carbons made them highly objectionable for such purposes. A number of parent arc-lighting companies were in existence, and a great many local companies had been called into being under franchises for commercial business and to execute regular city contracts for street lighting. In this manner a good deal of capital and the energies of many prominent men in politics and business had been rallied distinctively to the support of arc lighting. Under the inventive leadership of such brilliant men as Brush, Thomson, Weston, and Van Depoele--there were scores of others--the industry had made considerable progress and the art had been firmly established. Here lurked, however, very vigorous elements of opposition, for Edison predicted from the start the superiority of the small electric unit of light, and devoted himself exclusively to its perfection and introduction. It can be readily seen that this situation made it all the more difficult for the Edison system to secure the large sums of money needed for its exploitation, and to obtain new franchises or city ordinances as a public utility. Thus in a curious manner the modern art of electric lighting was in a very true sense divided against itself, with intense rivalries and jealousies which were none the less real because they were but temporary and occurred in a field where ultimate union of forces was inevitable. For a long period the arc was dominant and supreme in the lighting branch of the electrical