242 RECORD OF DEEP- WELL DRILLING FOR 1905. 
Feet. 
Hard light- and dark-gray sandy limestone: formation full of crevices 1, 220-1, 260 
Medium hard sand shell and lime (no sample) ; small amount of gas 1, 260-1, 270 
Hard gray sandy limestone or layers of sandstone 1 and limestone ; caving for- 
mation from 1,285 to 1,305 feet 1, 270-1 , 350 
Medium hard gray sandy magnesian limestone 1, 350-1 , 400 
No sample 1, 400-1 , 415 
Hard gray gritty limestone 1, 415-1, 460 
Hard brown limy sandstone — 1, 460-1, 475 
Medium hard gray gritty limestone 1, 475-1, 530 
Rig used, cable; casing used, 55 feet of LO-inch; 265 feet of 8-inch; 345 feet of 6-inch. 
No water found below 15 feet. 
NEW JERSEY. 
1061. Well at Fort Hancock, Monmouth County. 
[Well begun January 20, 1905; completed March 10, 190f>. Authority, E.C. Harper for Thos. B. Harper, 
contractor. Samples preserved. Geologic correlations by W. B.Clark.] 
This well is on the end of Sandy Hook. The formations below the recent and possibly 
Pleistocene sands were deposited in the Cretaceous period. They belong to the upper or 
marine division of the Cretaceous and include the Matawan formation. 
Record of well at Fort Hancock. 
Recent and Pleistocene: Foot. 1 
Beach sand (medium gray sand) 5- % i 
Coarse gray sand; brackish wat er 20- 21 
Beach sand (medium line gray sand) 25- 5lf 
Matawan: 
Very coarse water-bearing gravel (fine gray gravel). 50- 6 ijj 
Fine gray gravi 1 (sample is coarse yellow and white sand) ^S-Hfll 
Fine y< How, reddish, and gray sand 80— 10i' 
Fine yellowish sand (sample is dark gray), with "petrified wood" 100-12 | 
Light-gray grav< 1. with shells 12." h i 
Fine light-blue clay - 130-2 I 
Fine gray micaceous sand 240-2( | 
Mixed blue clay and sand (sample is very fine dark sand) 203-3( 
Magothy : 
Fine light -gray micaceous sand, with "charcoal" 300-31 .1 
Fine white sand: some water 330-3' : 
Yellow grav< 1 (Coarse varicolored sand); water-hearing 363-3 | j 
Diameter of well. 8 inches. Length of casing, 325 feet, with strainer from 325 to 3 
feet. Principal supply from 303 to 365 feet. Well pumps 60 gallons per minute. 
NEW MEXICO. 
1077. Well near Artesia, Eddy County. 
[Well begun in May, 190.5; completed July 8, 1905. Authority, E. L. Robertson, contractor. | 
samples.] 
Pecos River Valley, from Roswell to McMillan, has become one of the most beaut: | 
and densely populated sections of New Mexico, through the development of a remarks >; 
underground-w T atcr supply. This well is not among the largest sunk in the valley, bu j 
shows w T hat bountiful flows may be obtained by proper care in sinking and casing. T . I 
beds of clay, sand, and gravel, down to 780 feet, are of post-Tertiary age, and partly fill i 
old rock valley. The underlying sandstone and hard limestone arc part of the Carbo i 
erous system. A detailed account of the geology of part of Pecos River Valley and 
development of the art< sian water is given in Water-Supply and Irrigation Paper Xo. ! 9 
"Geology and underground-water resources of the Roswell artesian basin, - ' by C. A. Fis 
