394 Scientific Intelligence. 
tailed and accurately measured record of any oil-well in the United 
Stat The oil C 
ates. e oil-producing sand (sandstone) belongs to the Che- 
mung period, or the upper part of No. . in Pennsylvania 
e A letter to the editors from Mr. Ashburner contains 
below the bottom of the Second Mountain sand, which is probably 
the equivalent of the Olean conglomerate in my records. The 
ord producing sand is 1,780 feet, more or less, below this 
latter horizon, so that if the measures neither increase nor diminish 
ness between these two points. 
The paper of Mr. Ashburner gives the records also of the Kin- 
Wileox Well, No. 2, or Schultz Gas 
1,760 feet. : 
It states, concerning the Schultz Gas Well, that gas issued in 
immense quantities from a depth of 1,776 feet. An inch pipe was 
inserted to a depth of 2,000 feet, and the mouth of the well closed 
with the hope of causing the gas to force out the oil from the lat- 
ter depth. Two or th i 
if, as Mr. Schultz believes, the tube was entirely filled with the 
2. Region of the Great - Bakes.—Mr. Grorce Maw, F.L5., 
mentions (Geol. Mag., Oct., 1878) facts connected with the level 
Ontario is 365 feet below the sea-level and 600 feet below its ow? 
outlet into the St. Lawrence; of Erie, 462 feet above the same; 
of Huron, 145 feet above; of Lake Superior, 65 feet below the 
