being on a visit to a nobleman's house, Kimbolton, Huntingdonshire, and his lady lamenting that she was disappointed of building a dairy house on a spot she particularly wished, because there was no water to be found--a supply she looked on as essential--under _promise of secresy_ I told her I would endeavor to find a spring. I accordingly procured some hazel twigs, and in the presence of herself and husband, walked over the ground proposed, till the twig turned with _considerable force_. A stake was immediately driven into the ground to mark the spot, which was not very distant from where they had before sunk. They then took me to another and distant building in the park, and desired me to try there. I found the baguette turn _very strong_, so that it soon twisted and broke. The gentleman persisted that there was no water there, unless at a great depth, the foundation being very deep (a considerable stone cellar) and that no water appeared when they dug for it. I could only reply that I knew no more than from the baguette turning, and that I had too little experience of its powers or certainty, to answer for the truth of its indications. He then acknowledged that when that building was erected they were obliged to drive piles for the whole foundation, as they met with nothing but a quicksand. This induced him to dig in the spot I first directed. They met with a very fluent spring; the dairy was built and it is at this time supplied by it. I could give a long detail of other trials I have made, all of which have been convincing of the truth, but they would be tedious. For some years past, I have been indifferent about its becoming known, and have consequently been frequently requested to show the experiment, which has often been done to persons of high estimation for understanding and knowledge, and I believe they have all been convinced. Three people I have met with who have, on trying, found themselves possessed of the same faculty. I shall add only one more particular incident. Having once shown it to a party, we returned into the house to a room on the ground floor. I was again asked _how I held the twig_. Taking one in my hand, I found it turned immediately; on which an old lady, mother to the gentleman of the house, said that room was formed out of an old cloister, in which cloister was a _well_, simply boarded over when they made the room.