272 



Marl from the farm of Mr. Charles Euen, one fourth of a mile south 

 of Birmingham, on Rancocus creek. 



Descriftion. — Colour, sea-green; the washed grains of rather 

 large size, and of a very rich green colour. 



Composition. — In 100 parts: 



Greensand, - - - 91-35 

 Clay, - - . . 8-65 



Quartzose sand, - - none. 



10000 

 The proportion oi potash in this marl, by analysis, is 10 per cent. 



Vincentown. — The proportion of greensand in the marls of the 

 vicinity of Vincentown, though such as to confer decidedly active 

 properties, is yet somewhat inferior to that of some preceding 

 localities. In other respects these marls are of ordinary purity. 



Marl from the farm of Mr. Job Frick, near Vincentown. 



Description. — Colour, dull greenish-gray; washed granules of a 

 dark rich green, and of medium size. 



Composition. — In 100 parts: 



Greensand, - - . 77-55 

 Clay, ... - 20-45 

 Quartzose sand, - - 2-00 



100-00 

 The proportion o{ potash in this marl, by analysis, is 8-3 per cent. 



Marl from the farm of Mr. Benjamin Peacock, near Vincentown. 



Description. — Colour, dark grayish-green ; the washed grains 

 of a deeper green and small size. 



Composition. — In 100 parts: 



Greensand, - - - 76-13 

 Clay, .... 15-45 

 Quartzose sand, . . 8-42 



10000 



