200 CLAYS AND CLAY INDUSTRY. 



In other portions of the bank, however, the section was quite 

 different. 



Section at Henry I. Tinsman's clay bank — 300 yards from Bayre's. 



(1) Sand, 15 ft. 



(2) Black clay with lignite, 5-8 ft. 



(3) Bluish white clay with some included masses of red 



clay in it, down to tidewater, 12 ft. 



These pits are no longer worked, but E. M. Haedrich has made 

 extensive excavations in the bluff a mile northwest of Florence 

 station, where both Pensauken and Cretaceous gravel and sand 

 are worked. Several feet of Clay Marl I are here exposed be- 

 neath the Pensauken and above the sands of the Raritan forma- 

 tion. Incidentally some beds of white and red clay are also taken. 

 A black sandy clay, probably corresponding to the laminated clay 

 at S. Graham & Co.'s brickyard, is reported in wells around 

 Florence and Florence station at depths of 15 to 25 feet. 



BURLINGTON. 



White and red plastic clay occurs 2 miles east of Burlington, 

 along Assiscunk creek, on both banks of the river, on property 

 belonging to Mr. Joseph P. Scott (120) and Mr. Hays (121). 

 On the north bank it occurs in low ground covered by a few feet 

 of sand; on the south bank it is seen at the base of the creek 

 bluff, overlain by yellow sand at an elevation of 12 or 14 feet 

 above the creek. Stripping of 20 to 25 feet will be encountered 

 in working back into the bank for any distance, but considerable 

 clay can be dug along the creek without much stripping. Samples 

 of these clays have been tested, the results being given in Chapter 

 XIX, under the clays of Burlington county. 



BRIDGEBORO. 



The clay dug by J. W. Paxon & Co., at Bridgeboro, on the 

 south bank of Rancocas creek (132), belongs to the Raritan 

 formation. At the western openings a red-mottled clay, with 

 some yellow and some white masses, was exposed to a depth of 

 10 feet, below 8 or 10 feet of Pleistocene sand and gravel. The 



