Dr. Tenney's Account of Several Ifcdicmal Springs. 45 



whence those large plates were shaken. The remaining 

 part is, in many places, cracked into deep fissures, two or 

 three feet wide, and generally covered witli tables, similar 

 to those above mentioned. In other places they are open, 

 and discover long subterraneous vaults. These ruins ex- 



tend perhaps twenty rods, and were doubtless, if we may 

 judge from present appearances, produced many ages since, 

 by some very violent convulsion of nature. 



I have been induced to be thus particular in my descrip- 

 tion of the neighbouring bank, not only from its singularity, 



S 



but likewise on account of a conjecture which I shall here- 

 after venture to make, that there may be some connexion 

 between the causes of those appearances, and those that gave 

 rise to the springs. 



I shall now attempt a description of the springs, beginning 

 with the uppermost. . This is about two rods from the foot 

 of the bank ; the intervening meadow, a deep mud. This 

 spring may be more properly termed a well. It is of an oval 

 figure, and about three feet in its longest diameter. Its depth 

 is undiscovered, though it has been sounded with a pole many 

 feet long. ' It is perpetually emitting an infinite number of 

 air bubbles, from the size of those in a glass of bottled cider, 

 to that of a marble toy. This ebullition is constant, though 



f 



not uniform. The larger will frequently intermit for a short 

 space, and then recommence with renewed force. 



The stream of water from this well, is not much larger than 

 might pass through a large goose quill. The well is in the 

 centre of a stony substance (raised about three feet above the 

 surface of the meadow) which makes the perpendicular 

 / walls 



