Geology and Natural History. 227 
appears that about fifteen cubic feet of gas escapes irom this well 
every second. It is proposed to utilize this large amount of val- 
uable combustible by conducting it through pipes to Rochester, a 
er pice of twenty miles, 
rie, Pennsylvania, there are now twenty-five wells in suc- 
cessful operation, most of which have been bored for the special 
the first bored for ‘al: in 1864, 1,200 feet deep. No oil was 
obtained, but brackish water and an a supply of gas. 
This is used to light a few houses. The second well was bored in 
March, 1871, for gas, is 700 feet, deep and is acd to supply gas t 
light the shop and heat the boilers. The supply is not at all 2312 
lar, and has perceptibly failed since the Conrad well was sunk near 
it. The heating power of the gas from well No. 2 is roughly esti- 
mated at from eight to ten tons of coal per 
2d. Brevellier’s well was sunk for oil in 1864, depth 625 feet, 
sepstes five inches. The gas supplies five fires in the soap fac- 
ory and three in the house of the proprietor, besides lighting 
sia establishments. _it has been used in the factory for five 
yea 
oy oe a Painesville ape wells have been bored for 
oa With entire success, and ot are sae bored in these locali- 
eastern half of the State gas and oil sp rings are Hie cat met 
with, and wells have been bored for one or the other of these useful 
Am. Jour. Sor. —Tuirp Serres, Vou. V, No. o7,—Manc cu, 1873 
15 
