284 



The proportion oi potash deduced from that in the greensand, is 

 10-2 per cent. 



Marl from the farm of Elijah Horner, one mile and a half 

 southwest of Mullica Hill, Gloucester county. 



Description. — Colour, rich green, of medium tint ; washed 

 granules dark, and of large size. 



Composition. — In 100 parts : 



Greensand, - - - 90-75 



Clay, .... 8-25 



Quartzose sand, - - 1-00 



10000 



The proportion oi potash shown in this marl by direct analysis, 

 is lO'S per cent. 



Marl from, the farm, of John Doull, between Woodstown and 

 Mullica Hill, three miles from the former. 



Description. — Colour, dull earthy green ; the washed grains of 

 a dark green and very small in size. 



Composition. — In 1 00 parts : 



Greensand, - - . 89-55 



Clay, .... 10-45 



Quartzose sand, - - none. 



10000 



The proportion o{ potash in this marl, deduced from that in the 

 greensand, is 10-2 per cent. 



Woodstown. — The exposed portion of the marl tract opposite 

 Woodstown is of inconsiderable width, extending from a little 

 east of the village to about one mile and a half northwest of 

 Sharptown. In this neighbourhood, the streams cut rather deeply 

 into the bed, and reveal very nearly the same varieties of the 

 marl or greensand as at Mullica Hill. Upon Old Man's creek, 

 the marl is found as far towards the Delaware as Skulltown, 

 which indicates a wider expansion of the deposit than might be 



