On the Fissure-Inclusions. 



103 



ON THE FISSURE-INCLUSIONS IN THE FI3ROLITIC 

 GNEISS OF NEW ROCHELLE, N. Y.* 



BY ALEXIS A. JULIEN. 



{Received December 14, iS']S.) 



It may be well to precede a discussion of so special a sub- 

 ject, by a brief review of the phenomena ordinarily presented 



^ 



FIO. 2. 



♦Read in substance before the New York Microscopical Society, June ii, 187S. 



