BRINE SPRING-WELLS. 49 



denly it was burst into by the pressure of the 

 water, and the salt-spring rushed in with such 

 force, that in less than two hours it rilled to over- 

 flowing the well, which was five yards square 

 in section. One of the workmen was caught in 

 the rush of water, and, strange to say, carried 

 up the shaft two hundred and fifty feet without 

 hurt. It is very remarkable that in the A m alien - 

 bad at Langenbriicken, a sulphur-spring was 

 found by means of the boring-rod. It rises to 

 eight feet above the ground from a depth of fifty- 

 eight feet, has a temperature of 13°-4 C. (56°-12 1\), 

 and holds no salts in solution. 



Brine-springs that now flow over at the surface 

 have often been found by boring. Among the most 

 remarkable are those of Artern on theUnstruth, 

 and of Neusalzwerk near Eehme, not far from 

 Minden. At Artern they found, at a depth of a 

 thousand feet, a bed of rock-salt, from which a 

 saturated solution of salt (containing 27 # 4 per cent) 

 rises, and runs over at the top with a temperature 

 of 18°-5 C. (65-3 P.) The Neusalzwerk spring 

 is not distinguished by its quantity of salt, for it 

 contains but 4 per cent, but by its extreme 

 abundance of water. In the year 1843 it yielded 

 daily 440,000 gallons of salt water, that is 

 145,800 pounds of salt, which makes for the year 

 a cube of rock-salt, seventy two feet long in the 



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