M^ai®aiEg 



or 



THE PHILADELPHIA SOCIETY 



FOR PROMOTING AGRICULTURE. 



0?2 the New- Jersey Marls, By Mark Reeves, 



Evesham, fN'. J.) 9th mo, 20th, 1815. 



I will now endeavour to comply with thy request con- 

 cerning the marls of New-Jersey. There are several spe- 

 cies of them lying in separate and distinct veins, some of 

 which cross the State. To give a better idea of those 

 veins, I have taken off from Watson's map of New Jer- 

 sey such parts as were requisite for the purpose, and have 

 laid down thereon, those veins as near as my present in- 

 formation will permit. I have laid the lines straight, 

 being most convenient so to do ; but in reality such veins 

 are more or less irregular, although the general course 

 may be tolerably direct. The veins, as laid down through 

 the counties of Burlington and Gloucester, I expect will 

 prove tolerably correct. I have traced the gunpowder 

 vein nearly to Oldman's creek, that divides the counties 

 of Gloucester and Salem, and near there I found the gene- 

 ral appearance of the land to change; the edge of the pines 

 did not continue on their usual course ; I lost the vein of 

 green sand, and I could not find any marl ; whether the 



