CONTENTS. 



XV 



Plate XUII. 



Plate 



Plate 

 Plate 



XLIV. 



XLV. 



XLVI. 



Plate XLVII. 



Plate XLVIII. 



Plate 

 Plate 



Plate 



Plate 



XLIX. 

 L. 



LI. 



LII. 



Plate 



LIII. 



Plate 



LIV. 



Plate 



LV. 



Plate 



LVI. 



Fig. I. Clay pit of Bushnell & Westcott, near 

 Woodbine, 406 



Fig. 2. Pit of Clayville Mining & Manufacturing 

 Co., Clayville, 



Fig. I. J. C. Pedrick's brickyard, Flemington, .... 424 



Fig. 2. Clay bank at same brickworks, 



Views of the Mutton Hollow opening, Woodbridge, 434 



Fig. 1. Clay pit of M. D. Valentine & Bro., Wood- 

 bridge, 440 



Fig. 2. C. A. Bloomfield's clay bank, Bonhamtown, 



Fig. 1. McHose Brothers' pit, north of Florida 

 Grove, 446 



Fig. 2. Fire-clay pit of National Fireproofing Com- 

 pany, near Keasbey, 



Fig. 1. Portion of R. N. & H. Valentine's pits near 



Sand Hills, 448 



Fig. 2. Ostrander Brick Company's southern pit, 

 Sand Hills, 



Edgar Brothers' Ball Clay Washing Plant, near 



Sayreville, 452 



Fig. 1. Digging ball clay, J. R. Such's pit, 450 



Fig. 2. Digging pipe clay, J. C. Crossman's pit, 

 Burt Creek, 



Fig. 1. Armstrong's soft-mud brickyard, Morris- 

 town, 478 



Fig. 2. The clay deposit at Armstrong's brickyard, 



Fig. 1. The works of the Moore Brick Company, 

 Whippany, 480 



Fig. 2. The clay deposit and brick works, Whip- 

 pany, 



Fig. 1. Clay pit near Whitings, 482 



Fig. 2. Method of working the clay, Whitings, . . . 



Fig. 1. Prospecting for clay with an auger, 482 



Fig. 2. Adams Clay Mining Company's clay pits, 

 Old Half Way, 



Fig. 1. D. F. Haines' brick works, Yorktown, .... 494 



Fig. 2. Bank of Alloway clay, Haines' yard, 



Fig. 1. Shale pit of National Fireproofing Com- 

 pany, Port Murray, , 506 



Fig. 2. Shale in the railroad cut at Port Murray,. . 



Figure 

 Figure 

 Figure 

 Figure 



Figure 



FIGURES IN TEXT. 



PAGE 



Section showing downward passage of clay into rock, 6 



Section showing horizontal and vertical variations of clay,. 9 



Section showing uneven boundary between two clay beds,. . 10 



Section showing parallel faults in strata, 15 



Strata broken by a fault plane of low inclination, 15 



