86 TRANSACTIONS OF THE [Nov. 20, 
dike, about 20 feet thick, of such mineralogical character as to 
stamp it as an associate of the great elwolite-syenite dike, which 
outcrops 14 miles northwest.* 
This basic dike has no connection with the ore, which appears 
as inclusions in it. There seems also every reason to think that 
BUCKWHEAT 650 AT. 
MINE é/0 
SECTION AA. 
Fie. 5. Section AA. oF Fie. 4. 
the rocks and ore have not been much disturbed since the dike 
was intruded. 
Along the contact between the white limestone and the gneiss 
and granite on the west, there is a series of small magnetite ore 
bodies that have furnished considerable ore, and in the New 
2 
if 
Fic. 6; “SEcTION BB. or Fite. 4. 
Jersey Report for 1868, p. 658, it is recorded that one has been 
mined out from the limestone beneath the bend of the zine ore 
bed. This iron ore has received most attention to the south of 
the zine outcrops, for while in the surface cuts of the Hamburg 
mine it also shows, it is not over 2 feet thick. 
* J, F. Kemp, Trans. N. Y. Acad. XI. 69. 
