If the divining rod is put in motion by any other force except the involuntary action of the muscles, we must confine its powers to the property of indicating the presence of flowing water. There are numerous instances of hydroscopes thus detecting the existence of a spring, or of a subterranean watercourse; the most remarkably endowed individuals of this description are Jean-Jacques Parangue, born near Marseilles, in 1760, who experienced a horror when near water which no one else perceived. He was endowed with the faculty of seeing water through the ground, says l'Abbé Sauri, who gives his history. Jenny Leslie, a Scotch girl, about the same date claimed similar powers. In 1790, Pennet, a native of Dauphiné, attracted attention in Italy, but when carefully tested by scientific men in Padua, his attempts to discover buried metals failed; at Florence he was detected in an endeavor to find out by night what had been secreted to test his powers on the morrow. Vincent Amoretti was an Italian, who underwent peculiar sensations when brought in proximity to water, coal, and salt; he was skilful in the use of the rod, but made no public exhibition of his powers. The rod is still employed, I have heard it asserted, by Cornish miners; but I have never been able to ascertain that such is really the case. The mining captains whom I have questioned invariably repudiated all knowledge of its use. In Wiltshire, however, it is still employed for the purpose of detecting water; and the following extract from a letter I have just received will show that it is still in vogue on the Continent:-- "I believe the use of the divining rod for discovering springs of water has by no means been confined to mediæval times; for I was personally acquainted with a lady, now deceased, who has successfully practised with it in this way. She was a very clever and accomplished woman; Scotch by birth and education; by no means credulous; possibly a little imaginative, for she wrote not unsuccessfully; and of a remarkably open and straightforward disposition. Captain C----, her husband, had a large estate in Holstein, near Lubeck, supporting a considerable population; and whether for the wants of the people or for the improvement of the land, it now and then happened that an additional well was needed.