201 



99-85 



Greensand of the Marl from the Pits of Thomas Edwards, Bur- 

 lington county. 



Description. — Colour a rather light grayish green ; the granules 

 somewhat less than the medium size; it forms 93-51 per cent, of 

 the marl. 



99-75 



Greensand from the Marl at Evesham, Burlington county. 



Description. — Colour of the granules, a medium tint of green; 

 their size rather large; constitutes almost the whole of the marl. 



Composition. — In 100 parts: 



Silica, .... 48-50 

 Alumina, . . . 7-50 



Protoxide of iron, - - 22-80 

 Potash, - - - - 11-00 

 Water, ... - 9-50 



99-30 



