66 
The Downton Mill average gauging during December 1880 
was 4,766 cu. ft. per min. The Hogg’s Weir ditto 8,010 cu. ft. 
per min. 
4,766 cu. ft. per min. : 8,010 cu. ft. per min. : : 1: 1°68. 
On Christmas Day and the following day, Sunday, when no 
mills were at work, and the gaugings taken under the most 
favourable conditions, the ratio stands thus :— 
5,957 +9276: 2:1: 1.78. 
Mean say 1: 1.705, or approximately as 7 to 12. 
The average flow at Brimscombe Port during December, 
1880, was 4,951 cu. ft. per min., the full winter flow there being, 
as stated, 6,000 cu. ft. per minute. Taking this as a basis, 
the full water flow at Downton mill would be obtained thus :— 
4,951 : 6,000: : 4776: 5,775 cub. ft. per minute. 
Similarly the full winter flow of the Ryford stream would be 
9,707 cu. ft. per minute; making 15,482 cu. ft. per minute for 
the joint streams. 
Their dry weather flow should be 1th = 2,580 cu. ft. per min. 
Ordinary summer do. = 6,540 ditto. 
Spasmodic flood do. at least = 43,860 ditto. 
But it must be remembered that these results are obtained by 
computation, based however on the December gauging at 
Stonehouse, in connexion with experience of the river above, 
at Brimscombe Port. 
The drainage area to Stonehouse, as shown on Drawing No. 
1, being 79 sq. miles, we have the following tabulated results:— 
O30|qa 
BOs |] nog 
Aas zee 
cu. ft.| FHA | 28 
per | SH] 2 REMARKS 
in. | 388 | Se 
as) bas, 
Bde | 2a 
Ros | REA 
Dry weather flow— 
Stanley mill stream 962 cu. ft. per min. 
Ryeford ditto 1618 1 a 2580) 32.66 | 7.39 
Ordinary summer flow— 
Stanley mill stream 2438 cu. ft. per min, 
Ryeford ditto 4102 " u 6540! 82.78 | 18.74 
Full winter flow— 
Stanley mill stream 5775 cu. ft. per min. 
Ryeford ditto S707 ir u 15,482] 195.96] 44.37 
Joint flood flow of streams ... ed .»-| 43,860] 555.19} 12! 
The ratios the 
same as at 
Brimscombe 
Port 
