Mr. GouLDiNG. I mean what I say. It was succeeding as well as
ever it was, before or since. There is no evidence one way or the
other except what you get from that report ; and I mean to say when
that analysis was taken, after it had been treated at Croydon, the best
result is 47.0821, about four times as polluted as the Blackstone at
Millbury. Our sewage at the worst point, accordiug to the analysis
last year, was 41.8790, while the effluent of tlie Croydon farm after
irrigation was 47.0821 ; or, in other words, the effluent of that farm
is twelve per cent, in excess of the impurity of Mill-brook sewer at
the very worst point. Now, in Merthj-rtydvil, in Wales, thej' use
a downward filtration scheme, I believe. The result there is, after
treatment with lime, 65.854, or about one-half in excess of our sewage



326

at the worst place, and five or six times as corrupt as at Millbury.
