280 I. C. WHITE DEEP WELL NEAR MCDONALD, PENNSYLVANIA 



region where Dr. William Hallock has done such excellent pioneer work 

 along this line, very interesting and valuable results may be expected, 

 especially if the boring shall attain a depth of 8,000 feet or more, which 

 Mr. Pew says, it will, if money, machinery, and expert drillers can suc- 

 ceed in making a hole in the earth to that great depth. Too much praise 

 cannot be given Messrs. Pew, Corrin, Barger, and others connected with 

 The People's Xatural Gas Company for the public spirit they have shown 

 in dedicating this expensive well to the interests of pure science. 



Postscript 



Under date of May 27, 1913, Mr. L. F. Barger, general superintendent 

 of the People's Xatural Gas Company, has furnished additional data 

 concerning this most interesting well. The drill had attained a depth of 

 6,052 feet on December 31, 1912, when this paper was read at Xew 

 Haven, and a set of drilling tools was then in the hole, caught by the 

 caving shales above. The tools were finally recovered, and to prevent 

 any recurrence of such troubles the 6%-inch casing was inserted at 6,053 

 feet, 8 feet in a brownish gray sand, which the writer tentatively identi- 

 fies with the Oriskany. The record from the bottom of the Corniferous 

 flint at 6,045 feet down to the present depth on May 27, 1913, is given 

 as follows by Mr. Barger : 



Sand (water and gas, 6,060 feet) 



Brown sand 



White sand (salt water, 6,260 to 6,265 feet) 



Brown sand to bottom 



Thickness 

 Feet 



Total 



feet 



155 



6,200 



60 



6.260 



10 



6.270 



29 



6,299 



Explosive gas flow at 4,850 feet. 

 Explosive gas flow at 4,870 feet. 

 Explosive gas flow at 5,900 feet. 

 Explosive gas flow at 5,905 feet. 

 Explosive gas now at 5,910 feet. 

 Explosive gas flow at 5,915 feet. 

 Explosive gas flow at 6,060 feet. 



Temperature measurements taken in well : 



Temperature, Fahr. 



At 5,150 feet 110° 



At 5,220 feet 120° 



At 5,800 feet 140° 



At 6,000 feet 100°* 



At 6,095 feet 156° 



Taken in water 6,270 feet 156° 





* Evidently reduced by natural gas expansion. 



