BUREAU OF 

 AMERICAN ETMNOI OfSY, 



JUL 8 1912 



UMAHV 



THE 



AMERICAN JOURNALOFSCIENCE 



[FOURTH SERIES.] 



Art. I. — The Storm King Crossing of the Hudson Biver, 

 by the Neiv Catskill Aqueduct, of New York City ; by 

 J. F. Kemp. 



In the Journal for October, 1908, there is a paper describing 

 the buried channels of the Hudson and its tributaries in the 

 portion of its course lying between New York City and the 

 Catskills.* The paper was based upon data furnished by the 

 exploratory borings of the Board of Water Supply of JSTew 

 York City, incident to the great Catskill Aqueduct which will 

 soon be conducting the waters of Esopus Creek into the 

 metropolis. At the time, the most interesting point of all 

 could not be stated. It related to the bed-rock of the Hudson 

 itself, where the Aqueduct was to cross, from Storm King 

 Mountain on the west bank to Breakneck Mountain on the 

 east. In 1908 we knew that with great difficulty the drill had 

 been sent down in the middle of the river and that the hole 

 was still in bowlders and sand at a depth of 580 feet. 



In the spring of 1909 drilling was resumed in the hope of 

 reaching the bed-rock before the freezing of the river made 

 further operations impossible for the season. The difficulties 

 of casing and drilling these very deep holes, from an anchored 

 scow, in water 40 to 60 ft., with a swift sweep of the tides, and 

 with constantly passing traffic, are very great. The mixture of 

 sand and bowlders would be a serious obstacle even on land. 

 With the greatest skill and energy on the part of the drillers the 

 bottom of the hole at 768 ft. was still short of the bed-rock when 

 the winter closed in. For reasons that will be next explained 

 drilling from the scows was not resumed in the spring of 1910. 

 This form of exploration therefore closed with the result of 



* J. F. Kemp, Buried Channels beneath, the Hudson and its tributaries, 

 this Journal, xxvi, pp. 301-323, Oct., 1908. 



Am. Jour. Sci.— Fourth Series, Vol. XXXIV, No. 199.— July, 1912. 

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