INLAND WATER SURVEY 401 
From the discharges so observed and the recorded surface slopes the 
correct value of N in Kutter’s formula will be ascertained for this particular 
reach of river, and subsequent discharges will be calculated from the surface 
slopes as observed on these gauges. 
The cross-section of the river at the centre gauge (which at this site is 
fairly stable) will be periodically checked to correct error due to any change 
in this. 
2. Current meter measurements by velocity meter are being taken when 
observing discharges in rivers and drains. 
3. Water level records near flow gauging sites—No record by continuous 
recorders, but a record of gauges at important points read daily or twice 
daily has been kept for many years. 
4. Water level records at other sites.—There are no recording gauges yet 
fixed, but eight recording gauges have been prepared and will be fixed 
within the next few months, 
APPENDIX D (2) (e). 
WEST RIDING OF YORKSHIRE RIVERS BOARD. 
(REPLY TO QUESTIONNAIRE.) 
By J. H. GARNER. 
When my Chairman and myself met you in London last November 
I think we explained the steps which the West Riding Rivers Board have 
so far taken in regard to river flow gauging. You will find some particulars 
of our work in the special report on River Don Gauging and in the copies 
of the Annual Reports. 
Up to the present three Lea Recorders have been fixed as follows: 
No. 1, river Don at Hadfields’ Weir, Sheffield (this gauge is now owned 
by the Sheffield Corporation and supervised’by the manager of the Sheffield 
sewage works); No. 2, river Calder at Kirkthorpe Weir, Wakefield ; 
No. 3, river Aire at Beal Weir, near Knottingley. These recorders give a 
continuous record of rate of flow and level of water. 
Gaugings have also been made on the river Rother at Canklow, and 
river Dearne at Hoyle Mill, Barnsley. In these cases the gaugings were 
made over a reach of each river by taking the widths and areas of sections 
at different water levels and ascertaining velocities by floats. 
It will interest you to know that I am in negotiation with the engineer of 
the river Ouse (Yorks) Catchment Board with the object of establishing 
co-operation in regard to river flow gauging between the Catchment Board 
and the Rivers Board. 
My Committee has authorised the expenditure of £100 for the purchase 
of another Lea Recorder. This will be fixed to work with a suitable weir 
on another river in the West Riding where no gaugings have hitherto been 
continuously made. 
In the West Riding most of the rivers have been industrialised and there 
are many weirs, a good many of which the Catchment Board will no doubt 
be able to put into satisfactory condition for use with automatic flow 
recorders of the Lea type. 
So far as the Rivers Board are concerned, the use of suitable weirs would 
appear to be the only direction in which gaugings can be made, as the Board 
have no staff which could be spared to devote the necessary time to making 
gaugings by any other means. 
P2 
