1894. ] NEW YORK ACADEMY OF SCIENCES. 185 
but the speaker was unable to suggest the original numeral. 
The papers were discussed by Prof. Chester and Kemp. 
3. A. S. Eakle; Tourmaline Crystals from Rudeville, N. J. 
In the absence of the author the paper was read by J. F. Kemp. 
Large crystals of brown tourmaline from the limestone quar- 
ries north of Franklin Furnace were described, which are re- 
markable for the extended development of the basal pinacoid. 
In addition the other faces present are P2, P#,,R—2R, R° and 
Re. 
Prof. Kemp, who had collected the crystals, remarked on 
their occurrence near the basie dike, which contains leucite, and 
which probably occasioned their formation. (See Amer. Jour. 
Sci., May, 1894.) 
The next paper was— 
THEOL ROUSLVE ROCKS NEAR ST. JOHN, N.. B: 
(PLATE V.) 
By W. D. MatTTHew. 
Southern New Brunswick is in large part underlain by a com- 
plicated series of rocks, sharply folded and much faulted and 
metamorphosed. ‘These have been referred for the most part 
to Pre-Cambrian time, and appear to be a continuation of the 
great metamorphic belt of the Eastern United States. They 
have been very fully described as regards stratigraphy and gen- 
eral character in various Reports of the Canadian Geological 
Survey and elsewhere, and, as far as their limited exposures and 
complex folding and faulting permitted, their succession has 
been carefully Getermined. The work on this area, however, 
was done without the aid of modern petrographic methods, and 
in view of the great advance which these have effected in our 
understanding of the character and origin of igneous, and espe- 
cially of metamorphic rocks, it would seem that some new light 
might be thrown on the Pre-Cambrian formations of this region 
by a study of thin sections of the various rocks composing 
them. 
In the publications of the Survey, two main groups have al- 
ways been distinguished. They differ markedly in lithological 
