G, W. Hawes—The Greenstones of New Hampshire. 129 
Art. XX.—The Greenstones of New Hampshire and their or- 
ganic remains ; by GEo.W. Hawes. With plate V. 
_ THE occurrence in Eastern North America of rocks pertain- 
ing to what is appropriately styled the ‘“ greenstone” series has 
been noticed by. different observers. In a report upon the 
geology of the Connecticut Valley, Professor Edward Hitch- 
cock distinguished these from all the other rocks, by the name 
of “ chloritic and talcose schists.”* Dr. T. Sterry Hunt, in the 
Geology of Canada, has given analyses and descriptions of 
greenstones, and has discussed their mode of formation. Pro-- 
fessor C. H. Hitchcock has noticed these rocks in New Hamp- 
shire, and has carefully studied their extent and distribution.t 
he “ chloritic formation” near New Haven, which was noticed 
* This Journal, rT a 
» Vi, 26, : 
Re an Journal, III, vii, 468 aud 557, also yol. i, Geology of New Hampshire, 
+This Journal, TIT, xi, 119. 
