At first, nearly two thirds of the mass had to be taken by canal into the country, where it was “tipped,” the expense being so heavy that it entailed a loss of about 6s. 6d. per ton on the whole after allowing for that part which could be sold as manure.  Now, however, the case is different.  Extensive machinery has been introduced, and the contents of the pans are dried to a powder, which finds a good market; the ashes, &c., are used in the furnaces for the drying process, and the residue therefrom, or clinkers, forms a valuable substance for roadmaking or building purposes, &c., in the shape of concrete, paving flags, mantelpieces, tabletops, and even sepulchral monuments being constructed with it, so that in a short time the receipts will, it is expected, more than balance the expenditure in this department of local sanitary work.  The pollution of the river Tame in past years led to continuous litigation until the year 1877, when, as the result of an exhaustive inquiry, it was determined to form a United Drainage District Board, with powers to construct and maintain intercepting sewers sufficient for carrying the drainage of the whole district, comprising Aston, Aston Manor, Balsall Heath, Birmingham, Handsworth, Harborne, King’s Norton, Northfield, Perry Barr, Saltley, and Smethwick.  The first meeting of this Board was held December 6, 1877, when it took over the sewage farm at Saltley belonging to the Corporation (about 262 acres), the plant and stock, &c.  Up to the present time (end of 1884), nearly half a million sterling has been spent by the Board, whose “farm” of 1,500 acres, extends from Saltley to Tyburn, two and a half miles, and who have now to deal with the sewage brought there from 188 miles of main sewers, extending as far as King’s Norton and Selly Oak, Harborne, Smethwick, &c.  The whole of the black and turgid stream of liquid filth brought down by the sewers is utilised upon the farm, some 200 cubic yards of mud being lifted daily from the settling tanks, to be dug in, while the overflow is taken by carriers to the most distant parts, and allowed to filtrate through the soil, until the resulting effluent is as clear as crystal, while immense crops are gathered yearly from the land so treated.  An analysis made a little time back of a natural deposit from the town sewerage, formed near the embouchure of several sewers emptying into one of the great arterial mains, showed the absence of all ammoniacal salts and a scarcity of phosphates, particularly alkaline phosphates, and at the same time the presence of a large quantity of protoxide of iron, also of zinc, copper, and other metals in the state of oxides and sulphurets.  These metallic salts absorb the sulphuretted hydrogen and ammonia generated by decaying vegetable, and animal matter, and doubtless so contributes to promote the health of the town, but nevertheless every precaution should be taken against the possible admission to the house of “sewer gas,” which at all times is injurious