244 



A marl taken from the beach near Red Bank, belonging to 

 Jonathan M'Lane, exhibited the following 



1000 

 The potash in this marl, by calculation, is very nearly 10 



per cent. 



The ordinary aspect of the marl is a dull green; that of the 



washed greensand is a brighter, purer green. The granules are 



rather large. 



Marl of good quality displays itself in several places between 

 Red Bank and Shrewsbury, and around Eatontown. That at 

 the farm of Mr. Lafetrea near Eatontown affords by analysis the 

 following 



Composition. — In 100 parts: 



Greensand, - - - 79 



Clay, .... 13 



Quartzose sand, - - 8 



100 



, The potash in this marl, by estimation from the amount of the 

 greensand, is 9.1 per cent. 



About one mile southeast of Eatontown, in a low swampy tract 

 of ground, Dr. John P. Lewis has uncovered a stratum of some- 

 what peculiar marl, composed of fragmentary shells, a little 

 greensand, and much quartzose sand intermixed. From several 

 trials which have been made, it would appear to be endowed 

 with decidedly fertilizing properties. 



Between Eatontown and Long Branch, and about three miles 

 from the sea-shore and two from Eatontown, at a mill called 

 Turtle Mill, there occurs a variety of marl somewhat analogous 

 to the above. It consists of hardly any thing but shells in a 

 fragmentary condition, very friable and purely calcareous, and 

 contains but a very small share of the green particles; its colour 



