THE BURE AND ITS TRIBUTARIES. 255 
It will be seen that the waters are moderately hard, but 
that they possess a low degree of salinity. 
A table of results (Table VIII.) showing the character of 
the waters of the Bure Broads is also appended. Both the 
Broad waters and the river waters in this region are perfectly 
normal fresh waters. 
TABLE VIII. 
VARIOUS BROADS ON RIVER BURE. 
Date. 
Broad. 
; Salinity. 
Temporary 
Hardness. 
Permanent 
Hardness. 
Nov., 1906 
South Walsham Broad 
6.44 
12.63 
3-6 
Nov., 1906 
Ranworth Broad 
j 4.93 
10.36 
3 -i 
April, 1906 
Ranworth Broad 
12.8 
Nov., 1906 
Wroxham Broad 
2.84 
II . 12 
2.4 
Nov., 1906 
Salhouse Broad 
2.79 
10.50 
3-i 
April, 1906 
*(Little) Hoveton Broad 
5.1 
IO. I 
2.8 
* Analysis by Mr. H. Peel. 
Lower down, i.e., below Horning, the water is found to 
have a perceptibly higher degree of salinity, and the increase 
is still more noticeable when the confluence with the Thurne 
is approached. 
The increase is due, first to the entry of the waters of the 
Ant, which will be shown in the next section to contain 
8 — io grains of Chlorine per gallon on the average, whereas 
the Bure at Ant Mouth has a salinity of 5 — 6 grains only ; 
and secondly to salt water which has been backed up by the 
rising tide. The salt water, driven back from the Thurne 
Mouth to Acle stretch of the Bure, was shown in the preceding 
section to be diluted Thurne water and not sea water. The 
establishment of this fact was of great importance in the Great 
Yarmouth Waterworks Case. The Waterworks Company 
proposed to construct an intake at Horning, and to carry 
the Bure water from that point through pipes to Ormesby 
and thence to Yarmouth for domestic use. It thus became 
necessary to prove that the high salinity sometimes observed 
VOL. IX. 
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