506 Miscellaneous Intelligence. 
these districts for over fifty years, and were regarded by the agricultural 
population with disgust, as spoiling their water—auntil they found them an 
unexpected source of wealth. Both these districts are within the coal re- 
gion—but the Pennsylvania locality, at least, is below the coal-bearing 
rocks.—s. 
. Artesian Well at Columbus, Ohio,—rate of increase in temperature 
at 2,575 feet depth—In a letter to the Editors from T. E. Wormzey, Esq. 
dated Columbus, Ohio, August 6th, 1860. Dear Sirs :—I herewith send 
you the temperature of the artesian well in our city, at a depth of 2,575 feet. 
A few days since a Walferdin’s Thermometer, placed in a glass tube 
filled with water, and this enclosed in a strong iron case, also filled with 
water, was lowered to a depth of 2,475 feet, where it remained for twenty- 
five hours, it was then sunk to the bottom of the well, a depth of 2,575 
_ feet, where it remained for forty minutes. Upon the withdrawal of the 
instruments, it was found to have registered 88° F. Assuming this to be 
the temperature at the bottom of the well, and also assuming as correct 
data, that the temperature is uniformly 53° F. at a depth of 90 feet, we 
have an increase of 1° F, for every seventy-one feet. 
about to the top of the Devonian. Its water is half saturated with salt 
over 1,100 feet. Careful sections of all the beds passed through have 
been preserved by Mr. George A. Lathrop, our informant, who wi cal 
municate them to the State Geologist. : 
It would be interesting to record the bottom temperature of all artesian 
wells, by a Walferdin’s thermometer, and we trust our correspondents 
will take care to send us such results. _ 
it contains moreover several positive additions to the Science while sro 
of the demonstrations of well known propositions are new and highly 
suggestive. The leading idea of the author appears to have been to a 
a - 
of 
her; and accordingly this subject is entered upon at as early a stage of 
a: Dhie distribution of the subject, however, has not conduced t0 
clearness, while it has given the work a character which renders the W 
