DONS. — DU i AVRIL AU 21 JUIN 1887. 75 
William B. Dwiglit. — Discoverj of fossiliferous Polsdain strata at Pongh- 
kreepale N. Y., 20 t. 
Alexander Wincheli. — Sources of treud and crustal surplusage in mountain 
structure, 209. 
John C. Branner. — Glaciation of the Lackavvanna valley, 212. 
of Minnesota, 214. 
N. H. Wincheli. — Notice of Linf/iila and Parailorides from the rcd quarUytes 
H. Worthen. — The quaternary deposits of Illinois, 214. 
Frederick D. Chester. — Results from a stndy of the gahbros and associated 
amphibolites in Delaware, 215. 
James D. Dana. — Lower Silurian fossils in a limestone of Enimon’s original 
Taconic, 216 . 
L. E. Hicks. — The Dakota group south of the Flatte river in Nebraska, 217. 
Edward Orton. — The record of the deep well of the Cleveland Rolling Mill 
Company, Cleveland Ohio, 22o. 
Henry Shales Williams. — On the classilication of lhe Upper Devonian, 222 . 
S. 0. William. — Westward e.xtension of rocks of the Lower Ileilderberg pe- 
riod in New York, 235. 
A. B. Chandail. The occurrence of trep rock in eastern Kentucky, 23o. 
George F. Kunz. — Mineralogical notes, 240. 
George F. Kunz. — The tourmaline locality at Runford. Oxford Co... 
Maine, 242. 
George Kunz. — Native antimony and its associations at Prince William York 
Co, New Brunswick, 237. 
George F. Kunz. — A pseudomorph of feldspar after leneite (?) from Magnet 
Cave Arkansas, 243. 
George F. Kunz. — Meteoric iron from Jenny-s Creek Wayne Co West 
Va, 246. 
George F. Kunz. — Notes on a remarkable collection of rough diamauds, 250. 
G. K. Gilbert. — Post-glacial changes of level in the basin ofLake Ontario, 259. 
Alexander Wincheli. — The geology of Ann Arbor Mich. (Title), 259. 
E. \X . Claypole. — The raaterials of lhe Appalachians, 259. 
W. M. Adams (Title). — The Corni ferons or Upper Helderberg group of Scott 
county, lown, and Rock Island, Blinois, with a list of its fossils, 259. 
A. S. TilVany (Tille). — The Ghemung group at Burlington, lowa, wit a list o 
its fossils, 259. 
3,5'’ Meeting. 
Adress of Vice President F. C. Chamberlin, 193. 
Alexis A. Julien. — On lhe niethods of testing building stones, by absorption, 
freezing and üre, 213. 
S. G. Williams. — The Fully limestone, its distribution its irregularities, is 
character and its life, 213. 
S. G. Williams. — Note on the lower Helliderberg rocks of Ceyuga Co, New 
York, 214. 
S. G. Williams. — A révision of lhe Ceyuge Lake section of the Devonian, 215. 
R. P. Whitüeld. — Remarks on lhe molluscan fossils of the New Jersey mari 
heds, conlained in Vols, l and 2 ot that palaeontology, and on their stratigraphi- 
cal relations, 215 . 
J. S. Newberry. — On devonian and carboniferuns fishes, 210. 
J. S. Newberry. On the crelaceous flora of Norih America, 216 . 
