“Mac,” is pounded, and sometimes sifted, when required for use, and is then mixed and “worked up” with the lime for mortar, in the same way as sand. By the brickmakers it is mixed with the clay, ground, and formed into bricks in a similar manner.
Of the proportion sold to builders, plasterers, and brickmakers, severally, I could learn no precise particulars. The general opinion appears to be, that “mac” is sold most to brickmakers, and that it would find even a greater sale with them, were not brick-fields becoming more and more remote. I moreover found it universally admitted, that “mac” was in less demand—some said by one-half—than it was five or six years back.
Such are the uses of “mac,” and we now come to the question of its value.
The price of the purer “mac” seems, from the best information I can procure, to have varied considerably. It is now generally cheap. I did not hear any very sufficing reason advanced to account for the depreciation, but one of the contractors expressed an opinion that this was owing to the “disturbed” state of the trade. Since the passing of the Sanitary Bill, the contractors for the public scavengery have been prevented “shooting” any valueless street-dirt, or dirt “not worth carriage” in convenient waste-places, as they were once in the habit of doing. Their yards and wharfs are generally full, so that, to avoid committing a nuisance, the contractor will not unfrequently sell his “mac” at reduced rates, and be glad thus to get rid of it. To this cause especially Mr. —— attributed the deterioration in the price of “mac,” but if he had convenience, he told me, and any change was made in the present arrangements, he would not scruple to store 1000 loads for the demands of next summer, as a speculation. I am of opinion, moreover, notwithstanding what seemed something very like unanimity of opinion on the part of the sellers of “mac,” that what is given or thrown away is usually, if not always, mixed or inferior “mac,” and that what is sold at the lowest rate is only a degree or two better; unless, indeed, it be under the immediate pressure of some of the circumstances I have pointed out, as want of room, &c.
On inquiring the price of “mac,” I believe the answer of a vendor will almost invariably be found to be “a shilling a load;” a little further inquiry, however, shows that an extra sum may have to be paid. A builder, who gave me the information, asked a parish contractor the price of “mac.” The contractor at once offered to supply him with 500 loads at 1s. a load, if the “mac” were ordered beforehand, and could be shot at once; but it would be 6d. a mile extra if delivered a mile out of the mac-seller’s parish circuit, or more than a mile from his yard; while, if extra care were to be taken in the collection of the “mac,” it would be 2d., 3d., 4d., or 6d. a load higher. This, it must be understood, was the price of “wet mac.”
Good “dry mac,” that is to say, “mac” ready for use, is sold to the builder or the brickmaker at from 2s. to 3s. the load; 2s. 6d., or something very near it, being now about an average price. It is dried in the contractor’s yard by being exposed to the sun, or it is sometimes protected from the weather by a shed, while being dried. More wet “mac” would be shot for the trade, and kept until dry, but for want of room in the contractors’ yards and wharfs; for “mac” must give way to the more valuable dung, and the dust and ashes from the bins. The best “mac” is sometimes described as “country mac,” that is to say, it is collected from those suburban roads where it is likely to be little mixed with dung, &c.
A contractor told me that during the last twelve months he had sold 300 loads of “mac;” he had no account of what he had given away, to be rid of it, or of what he had sold at nominal prices. Another contractor, I was told by his managing man, sold last year about 400 loads. But both these parties are “in a large way,” and do not supply the data upon which to found a calculation as to an average yearly sale; for though in the metropolis there are, according to the list I have given in p. [167] of the present volume, 63 contracts, for cleansing the metropolis, without including the more remote suburbs, such as Greenwich, Lewisham, Tooting, Streatham, Ealing, Brentford, and others—still some of the districts contracted for yield no “mac” at all.
From what I consider good authority, I may venture upon the following moderate computation as to the quantity of “mac” sold last year.
Estimating the number of contracts for cleansing the more central parishes at 35, and adding 20 for all the outlying parishes of the metropolis—in some of which the supply of road “mac” is very fine, and by no means scarce—it may be accurate enough to state that, out of the 55 individual contracts, 300 loads of “mac” were sold by each in the course of last year. This gives 16,500 loads of “mac” disposed of per annum. It may, moreover, be a reasonable estimate to consider this “mac,” wet and dry together, as fetching 1s. 6d. a load, so that we have for the sum realized the following result:—