These industries are making such rapid progress in the way of new processes, effecting both economy and improvement, that it is somewhat difficult to say what steps should be taken. Many are of the opinion that gas is destined to be entirely replaced by the electric light; but while this may eventually prove true, it will probably be a very long time before the existing gas-works cease to supply consumers. Thus the true solution of the problem seems to be that when a growing town nowadays wishes to establish a new lighting plant of its own, it should adopt electricity. But in the case of a town having gas-works already established, the municipality is safe in assuming their ownership. As regards the operation of lighting plants in small towns, it would doubtless be best to lease the plant for short terms of years to the highest bidder, making sure that the call for proposals is widely circulated. Great cities, however, would find this policy unsatisfactory. If a ten-year lease of the Philadelphia gas-works, for instance, were advertised for sale to the highest bidder, there would be but few really close bidders upon it, and the danger of "a combination to defeat competition" would be great. It is at least worth considering whether such a plan as we proposed for railways could not be made feasible here. Let a corporation be chartered to operate the lighting plant of the city, and let the charter of the corporation provide that its rates shall be such as to pay an annual dividend upon its capital stock (fixed by law and not changeable) equal to the legal rate of interest in the State. Provided, that in no case should the rates be lowered unless the net profits in one year were more than 2 per cent. in excess of this rate, and that the excess for two consecutive years was more than 11/2 per cent. in excess of this rate. Provided also, that in no case should the rates be raised unless the deficit exceeded 11/2 per cent. in any year, and 1 per cent. for two consecutive years, and that it should be proven by the company that it had exercised all reasonable diligence, care, and economy in the management and operation of its business. A certain proportion of the stock--less than a majority--should be held by the city; and the mayor should appoint directors to represent the city, at least one of whom should be personally conversant with the industry carried on by the company.