J. F. Kemp — Basic Dike near Hamburg, N. J. 



299 



W. R. Van der Huff, of Deckertown, of another dike, near 

 Hamburg. This was visited and from it a suite of specimens 

 obtained, which are quite fresh, and which show several very 

 peculiar and interesting features. The dike lies much farther 



Fig. 1. 



away from the syenite, than those earlier described and more 

 than half way to Franklin Furnace, where Professor Emerson 

 found years ago the peculiar mica-diabase.* The accompany- 



*B. K. Emerson, this Journal, III, xxiii, p. 3*76. Still another dike has been 

 discovered by P. L. Nason, at Rudeville, N. J. Geol. Snrv. 1S90, p. 35. 



