| Horned cattle | 224,000 |
| Sheep | 1,550,000 |
| Calves | 27,300 |
| Pigs | 40,000 |
| 1,841,300 |
The blood flowing from a slaughtered bullock, whether killed according to the Christian or the Jewish fashion, amounts, on an average, to 20 quarts; from a sheep, to 6 or 7 quarts; from a pig, 5 quarts; and the same quantity from a calf. The blood from a horse slaughtered in a knackers’ yard is about the same as that from a bullock. This blood used to bring far higher prices to the butcher than can be now realized.
In the evidence taken by a Select Committee of the House of Commons in 1849, concerning Smithfield-market, Mr. Wyld, of the Fox and Knot-yard, Smithfield, stated that he slaughtered about 180 cattle weekly. “We have a sort of well made in the slaughterhouse,” he said, “which receives the blood. I receive about 1l. a week for it; it goes twice a day to Mr. Ton’s, at Bow Common. We used to receive a good deal more for it.” Even the market for blood at Mr. Ton’s, is, I am informed, now done away with. He was a manufacturer of artificial manure, a preparation of night-soil, blood, &c., baked in what may be called “cakes,” and exported chiefly to our sugar-growing colonies, for manure. His manure yard has been suppressed.
I am assured, on the authority of experienced butchers, that at the present time fully three-fourths of the blood from the animals slaughtered in London becomes a component part of the wet refuse I treat of, being washed into the sewers. The more wholesale slaughterers, now that blood is of little value (9 gallons in Whitechapel-market, the blood of two beasts—less by a gallon—can be bought for 3d.), send this animal refuse down the drains of their premises in far greater quantities than was formerly their custom.
Now, reckoning only three-fourths of the blood from the cattle slaughtered in the metropolis, to find its way into the sewers, we have, according to the numbers above given, the following yearly supply:—
| Gallons. | |
| From horned cattle | 840,000 |
| „ sheep | 1,743,000 |
| „ pigs | 37,500 |
| „ calves | 25,590 |
| 2,646,090 |
This is merely the blood from the animals sold in Smithfield-market, the lambs not being included in the return; while a great many pigs and calves are slaughtered by the London tradesmen, without their having been shown in Smithfield.
The ordure from a slaughtered bullock is, on an average, from ½ to ¾ cwt. Many beasts yield one cwt.; and cows “killed full of grass,” as much as two cwt. Of this excrementitious matter, I am informed, about a fourth part is washed into the sewers. In sheep, calves, and pigs, however, there is very little ordure when slaughtered, only 3 or 4 lbs. in each as an average.
Of the number of horses killed there is no official or published account. One man familiar with the subject calculated it at 100 weekly. All the blood from the knackers’ yards is, I am told, washed into the sewers; consequently its yearly amount will be 26,000 gallons.
But even this is not the whole of the wet house-refuse of London.