454 GLACIAL FORMATIONS OF ERIE AND OHIO BASINS. 



Henry Lawson penetrated 75 feet of drift, but several wells in Chandlers 

 Valley strike rock at 20 to 30 feet. 



In the valley of Little Brokenstraw Creek at Lottsville is a well 

 showing an extraordinary amount of drift, 450 feet, and the wfell did not 

 reach the rock. Carll furnished the following record.' 



Section of Smith well, or Lottsville No. 2. 



Feet. 



1. Surface loam and some gravel - - 8 



2. River gravel, not coarse nor fine, medium 22 



3. Quicksand -• 7 



4. Clay, with some seams of quicksand and occasionally a few pieces of gravel pronounced to be 



limestone - 163 



5. Alternating bands of quicksand and fine and coarse gravel of many colors 200 



6. Clay 30 



7. Sand and gravel 20 



Total 450 



Authority, A. M. Smith, one of the owners. 



Well mouth above ocean in feet (barometric), 1,410. 



In connection with this section Mr. Smith stated that the record was 

 given from memory, since they had thought to begin a written record when 

 they entered the rock; but after driving 450 feet of pipe with no more 

 indication of rock than at 35 feet, the undertaking was abandoned. In a 

 footnote^ Cai'll makes the following remarks concerning this deeply eroded 

 valle}^ at Lottsville: 



It can not be questioned, however, that a remarkably deep valley was eroded 

 here, and inasmuch as we have evidence in other places of deep cuttings that seem 

 uncalled for on the theory of regular slopes to old stream beds, it suggests the inquiry 

 whether the under ice currents, under certain peculiar combinations of circumstances, 

 might not be capable of excavating in soft measures to a considerable depth below 

 the level of the main outlet for the subglacial waters. 



It is the present writer's opinion that this interpretation may be appli- 

 cable to this and other valleys in which a remarkably low altitude of the 

 valley floors near the inner border of the moraine have been found. 



An analysis of clay from this well, taken from a depth of 150 feet, was 

 made by A. S. McCreath at the State laboratory, and with it is given Mr. 

 McCreath's analysis of clay from the "gravel pit" oil wells near Titus ville.^ 



' Second Geol. Survey Pennsylvania, Kept. I*, p. 233. 

 ^Ibid., pp. 234-235. 

 ^Ibid., p. 235. 



