WORGRET HILL AND WAREHAM WATER SUPPLY. I $3 



side. Except for Plateau-gravel on the summit platform it 

 consists wholly of clays and sands of the Bagshot series, and it 

 is the alternation of these which constitute its water-bearing 

 capacities (see section, Fig. 2). These Bagshot Beds extend for 

 an unknown depth downwards, and quite possibly hereabouts 

 attain their maximum thickness so far as this part of Dorset is 

 concerned. I hope to take this subject into consideration 

 presently when we have considered briefly the history of the 

 well-sinking. 



HISTORY OF OPERATIONS FOR WATER SUPPLY. 



In the year 1898 a trial borehole was made at Worgret by 

 Messrs. Pike Bros., and in 1899 the sinking of the Well 

 commenced. Mr. Drew informs me that the Well was sunk 

 about twelve feet north of the borehole, and it was observed 

 that practically the same formations were passed through as 

 were found in the borehole with the exception of there being a 

 slight dip of the strata towards the north. It will be seen 

 subsequently that I consider the full dip to be somewhat east of 

 north. On the occasion of my first visit to the Well (November 

 1 8th, 1889) the sinking had been in progress for some time, and 

 the workmen were nearly fifty feet down in the wet sand which 

 contains the top water, from which it was thought at one time 

 that a supply might be taken. Later on (December i3th) I 

 received a letter from Mr. Drew with a sample of carbonised 

 wood found that morning at a depth of 82 feet from the surface. 

 The sinker picked out about half a bucketful whilst Mr. Drew 

 was in the Well. Stems, leaves, and fruits were also found 

 subsequently. The material here is a pale-coloured pipeclay, 

 said to be of inferior quality, and the vegetable remains on the 

 whole not unlike those from the clay workings at Norden and 

 elsewhere. The fruits are fairly similar to those so abundant in 

 the Bournemouth Beds, but on the whole more oval-elongate. 

 After getting through the Higher Clay an abundant supply of 



