The writer of a letter in the Times on Monday
similarly charged the London County Council with throwing away many millions of cubic feet of gas a year by their practice of disposing of the London sewage. It has been proved, he writes, that this sewage would produce 250,000 tons of sludge every year from which 15,000 oubio feet of gas per ton, besides by-products, could easily be obtained. At 4s. per thousand feet of gas, this would save £750,000 a year for the ratepayers, and the by- products might be put at another £200,000 a year. We hope that the correspondent's figures are right.