174 
.sechetary's report. 
consists of coarse shingle which could not be penetrated by the 
liand-boring apparatus. 
In order to clear up this matter satisfactorily it will be 
necessary to engage the services of a professional well-sinker 
and to have one or two bore holes put down by mechanical 
means. 
An investigation was also made of the streams tributary to, 
or in tlie neighbourhood of, Alum Pot. 
A series of small springs rises from beneath the drift and peat 
near the wall at the north end of Whit-a-Green : these run 
together and form a small stream which sinks at P 34, a small 
pot-hole amongst long grass. Fluorescein was introduced 
liere, and reappeared in half an hour at a small opening some 
liundred yards to the south of P 34 : here the stream can be 
traced on the surface for twenty yards, when it again sinks. 
The fluorescein was put into P 34 at 4 p.m., and was traced 
tlie following day at S 52 ; then overground to P 35, where it 
again sank to reappear at S 49 ; thence it flowed to P 36, and 
so underground to S 50, finally sinking at P 41. 
The fluorescein sinking at P 41 did not affect any of the 
springs on Font Green, but was again seen in Footnaw's Hole. 
This water must therefore go by a deep course, and eventually 
join the underground flow from Alum Pot to Turn Dub, via 
Footnaw's Hole. 
Whit-a-Green Spring. — This rises on the higher slopes of 
Simon Fell at a height of 1,600 feet, and flows over the surface 
of the rocks of the Yoredale series till it reaches the underlying 
Carboniferous limestone at 1,250 feet, where it sinks at P 29. 
A trial with fluorescein resulted in proving that this water 
flows out at S 55, and falls into the middle opening of Long 
Churn, known as Dickon Pot, P 30, where it joins the main 
stream occupying that channel. 
The channel by which this stream flows can be traced for 
a considerable distance by means of a series of openings to the 
surface, and it was found to be possible to actually traverse the 
tunnel throughout almost its entire length ; but the exploring 
