lii 
Proceedings. 
-Paleontologic Notes. 
-Notes on Paleozoic Rocks of Central Texas. 
- ■- - Notes on some Paleozoic Pteropods. 
-Stratigraphic Position of the Olenellus Fauna in North 
America and Europe. 
-Description of New Forms of Upper Cambrian Fossils. 
-A Reveiw of Dr. R. W. Elis’s Second Report on the Ge¬ 
ology of a Portion of the Province of Quebec; with addi¬ 
tional Notes on the “Quebec Group.” 
- Study of a Line of Displacement in the Grand Canon of 
the Colorado in Northern Arizona. 
Warner, Dr. A. G. Report of the Superintendent of Charities 
for the District of Columbia for Year ending June 30, 
1891, by G. F. Pope, Supt. 
Weinschenk, E. Beitrage zur Mineralsynthese. (Presented by 
Dr. E. Cohen.) 
Weiss, J. E. Die Bayerische Botanische Gesellschaft zur Er- 
forschung der heimischen Flora und ihre Organization. 
Whitney, J. D. (with M. E. Wadsworth.) The Azoic System 
and its Proposed Subdivisions. 
Whitney, S. H. The Early History of the Kennebec Valley. 
Williams, G. H. Contributions to the Geology of the “ Cort- 
landt Series” near Peekskill, N. Y. 
-Anglesite, Cerussite and Sulphur from the Mountain View 
Lead Mine near Union Bridge, Carroll County, Md. 
- Cause of the Apparently Perfect Cleavage in American 
Sphene (Titanite.) 
■- On the Serpentine (Peridotite) Occuring in the Onon¬ 
daga Salt-Group at Syracuse, N. Y. 
- The Geology of Fernando de Noronha. 
-On a new Petrographical Microscope of American Manu¬ 
facture. 
-The Non-feldspathic Intrusive Rocks of Maryland and the 
Course of their Alteration. 
-On the Possibility of Hemihedrism in" the Monoclinic 
Crystal System, with Especial Reference to the Hemihe¬ 
drism of Pyroxene. 
- Colestin von Mineral County, West Va. 
