[M] 
fiances. In digging 40 Feet deeper, the Clay was 
found of various Colours, brown, blueifh, and black} 
intermixed with a confiderablc Number of Tyrit# 
or Copperas Stones, and fome pretty large Mafles of 
the Waxen- vein or Ludus Helmontii , which is alfo 
found in great Plenty on the Sea- fhore near the Spaw 
at Scarborough. 
The Well being digged to the Depth of 60 Feet, 
and no Water appearing, Mr. Cox caufed it to be 
covered up, and gave himfelf no farther Trouble 
about it that Winter. The following Spring, on my 
coming down, it was opened. I found 25 Feet of 
Water, of a fulphureous Smell and Tafte, which 
went off, after the Well had been opened fome 
Days. 
As I had a ftrong Sufpicion, that this Water was 
impregnated with fome Mineral, I made an Inquiry 
into the Nature of it by the following Experiments : 
1. It curdled Milk. 
2. It became green, when mixed with Syrup of 
Violets, which Colour difappeared in a few Days. 
3. Being poured on Green Tea, it did not acquire 
any Colour. 
4. Being mixed with powdered Galls, it acquired a 
deeper brown Colour than Rain-water did, and con- 
tinued turbid} whereas the Rain-water continued 
clear, after the Galls were fubfided. 
5. Being Brake 11 in a clofe-flopped Phial, it dif- 
ploded a Vapour on opening the Phial before the 
Commotion ccafed, with a more audible Noife than 
common Water did. 
6. Being mixed with Oil of Vitriol, and Oil of 
Tartar, a much more conliderable Ebullition was 
railed, 
