MR. ROBERT GURNEY ON THE TIDES OF 
The range of the tide was found to be practically identical 
in the two cases, the average being 4.5 in. in the river and 
4.4 in. in the Broad. The moon having just passed its first 
quarter the tides were neaps. On the other hand high water 
was reached 34 minutes earlier in the river than in the Broad. 
Above Horning. 
Above Horning the tidal wave becomes so small and there- 
fore so easily obscured by secondary influences that observa- 
tions become very unreliable. Opposite Hoveton Great 
Broad the average range for a week’s records was 2.3 in., the 
extremes varying from 1 in. to 3.3 in. The same result was 
found opposite the entrance to Wroxham Broad, but in both 
these cases if the tides are taken separately it is often impossible 
to say, from the curve traced on the chart, that there has 
been on any particular occasion a definite tidal oscillation. 
It is impossible to discover, with any approach to accuracy, 
the times of high water and low water. I find it, in fact 
impossible to give any reliable figures for the tides, if such 
exists, in Hoveton and Wroxham Broads, but I hope to carry 
out further investigations with a tide gauge specially modified 
for the purpose. 
The Thurne River. 
It has already been stated that the range of tide in the Bure 
at Thurne Mouth was found to be about 7.8 inches. At 
Womack Broad, ij miles from the mouth, the range on 
September 23rd — 25th, 1908, was 6.5 in., and at Potter 
Heigham Bridge, three miles from the mouth, on September 
nth — 12th, 1905, it was 5 inches. These figures are derived 
from single observations, but are probably very near the 
normal range. 
About a mile from Potter Heigham Bridge the Candle 
Dike enters the river, bringing the waters of Hickling Broad 
and Horsey Mere, and beyond this point the river becomes 
very narrow and weedy, and is known as the Hundred stream. 
Candle Dike broadens out into Heigham Sounds, and here 
the tide gauge has been used three times. The average 
