Mr. WILLIAM PthARD (Hertford) examined. HERTFORD. Mr. T. Wa#39;. Grindle. 19 Dec. 1866. M r. W.Pollard. flERTFORD. ... The gullies hold the sediment until it is cleared away ?aNo; at the time when ... It was not gas coming back from the drain aaNo, there is too much water in those drains for there to be any great smell. . 5009. ... (Chairman) Have you seen the method by which ventilators can be constructed. so as to compel the gases to pass through a certain quantity of charcoal ?
|Title||:||Report on the Best Means of Preventing the Pollution of Rivers: Lee River|
|Author||:||Great Britain. Rivers Pollution Commission|