The Grand Junction Company have formed a high service reservoir near Kilburn, to contain 6,000,000 gallons, for constant service, and are completing the line of main pipes to connect up this reservoir with the works at Campden-hill; they are likewise erecting boilers and works at Hampton, for which place an additional 70-inch engine of 125 horse power is being constructed, and an extra 30-inch main from Hampton to Kew has been ordered to be laid down. The Chelsea Company does not appear to have taken, as yet, any steps in this matter, having, as we shall see, other and more pressing work in hand. The Act of 1871 provides power to compel the companies to give a constant supply as and when the “public authority” may see fit to move. The authority (Metropolitan Board of Works) has not seen fit to move in respect of the companies supplying this parish, nor is it probable that any steps will be taken until the stringency of the water regulations, to which I have already referred, has been modified. The number of miles of streets in the Metropolis which contain mains constantly charged, and upon which hydrants could at once be fixed, is 666—including 67 in the West Middlesex, 41½ in the Grand Junction, and 50 in the Chelsea Company’s district. The companies are prepared to affix hydrants thereon when required by the authorities; but, in fact—although hydrants might be used for street watering—of 2,531 hydrants already erected, 1,996 are for private purposes, and only 535 for public purposes, including 267 for street watering, in the entire Metropolis.