262 TIDAL ACTION IN THE BURE AND ITS TRIBUTARIES. 
Table XIV. reproduces the salinity on subsequent dates. 
It is seen that several days elapsed before the water sank to 
its normal level again. 
Some analyses in Barton Broad, and in the Hickling 
Broad region near the time of this abnormal tide are given in 
Table XV. If these salinities are compared with the values 
recorded in the corresponding tables of normal periods it 
will be seen that the salinity in both places was largely 
raised by the abnormal tide. 
TABLE XV.— RIVER ANT & BARTON BROAD. 
After Abnormal Tide. 
Date. 
Sample taken from 
Salinity. 
Temporary 
Hardness. 
Permanent 
Hardness. 
March 28th, ’06 
River Ant, 300 j^ards above 
Barton Broad . 
13.08 
March 28 th, ’06 
Barton Broad, 300 yards 
below Top Posts 
30-59 
_ 
March 21st, ’06 
Barton Broad, Pleasure Hill 
33-8 
5-2 
8.2 
March 30th, ’06 
April 6th, ’06 
Ludham Bridge . 
39 -o 
— 
Barton Broad, 300 yards 
below Top Posts 
7-52 
— 
— 
TABLE XVI.— HICKLING BROAD, Etc. 
After Abnormal Tide. 
Date. 
Sample taken from 
Salinity. 
Temporary 
Hardness. 
Permanent 
Hardness. 
March 31st, ’06 
Hickling Broad . 
55-2 
8.5 
18.5 
March 31st, '06 
Heigham Sounds 
66.4 
9-5 
17-5 
March 31st, ’06 
Horsey Mere 
78.8 
9.4 
2I.7 
Thus, the general conclusion is that these exceptionally 
high tides, whose occurrence is, however, quite a rarity, are 
able to penetrate the whole of the Bure system. 
