Pennsylvania, colonial and federal : a history, 1608-1903 . unty; near the mouth of Dunlap creek, Fayette county, and nearWashington in Washington county. Regarding the sources of petroleum and the probability of ex-haustion of the supply. Professor Lesley wrote in 1883: Tt iscertain that petroleum is not now being produced in the Devonianrocks by distillation or otherwise. What has been stored up canbe got out. When the reservoirs are exhausted, there will be anend of it. The discovery of a few more pools of two or three mil-lion barrels each can make little difference in the general
Pennsylvania, colonial and federal : a history, 1608-1903 . unty; near the mouth of Dunlap creek, Fayette county, and nearWashington in Washington county. Regarding the sources of petroleum and the probability of ex-haustion of the supply. Professor Lesley wrote in 1883: Tt iscertain that petroleum is not now being produced in the Devonianrocks by distillation or otherwise. What has been stored up canbe got out. When the reservoirs are exhausted, there will be anend of it. The discovery of a few more pools of two or three mil-lion barrels each can make little difference in the general excellent authorities of that time accepted the same view, 452 Natural Resources and it was not nntil aljuut that year that the proljahle (hminntionand final exhaustion of the oil supply in any given locality, andthe revolutionizing consequences of such a result, were fully ap-preciated. But when the maximum production for any onemonth (105,102 barrels) was reached in July, 1882, and a longand steady decline in cjuantity began and continued, the most. The Drake Monument Erected in memory of Colonel E. Drake, atTitusville; dedicated, iqoi. Negative by JohnA. Mather optimistic believers in a supph- that would continue indefinitelywere convinced of their error. In his work on The Product andExhaustion of the Oil Region of Ienns)-lvania and New York,(1885), Charles A. Ashburner wrote: A defined territory, aproduct inadequate to meet the demand of the market for the pasteighteen months, a growing market and ra])idly diminishingstocks; an increasing number of drilling and producing wells,and a rapidl}- falling daily average product per well, are all sig-nificant signs of a certain decline in a great industry. 453 Pennsylvania Colonial and Federal These statements, startling- as they were at that time, have allbeen verified as far as relates to the prodncing territory then dis-covered and developed. \Miere once hnndreds of thonsands ofactive men eagerly toiled in one or anoth
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