CONTENTS. +. 
XXI.—Contributions from the Sheffield Laboratory of Yale 
College. No. XVII.—On Willemite and Tephroite; by 
Wii G. Mixter, ---- cs aa0 
XXII.—Notices of papers in Physiological Chemistry. No. L 
By Grorce F, Barker, 233 
XXIII.—Contributions from the Sheffield Laboratory of Yale 
College. No. .—On Sussexite, a new borate from 
Mine Hill, Franklin Furnace, Sussex Co., New Jersey; 
by Grorce J. Brusn, 240 
XXIV.—On an easy and very effective mode of showing the 
vibrations in Chladni plates, &c., to a large class, by the 
use of a calcium or electric lantern; by Jussz 8, Cuxry- 
NEY, 243 - 
XXV.—On new specimens of Eozoon Canadense, with a re- 
ply to the objections of Professors King and Rowney; 
by J. W. Dawson, and notes by W. B. Carpenter. 
With two plates, 245 
XXVI—On Aquacreptite, a new mineral, and on Corundo- 
philite of Chester; by Cuartes UpuAm SuEparp,----- 256 
XXVIL—A new locality of Meteoric Iron in Georgia; by 
— Uruam SHEPARD, 257 
SCIENTIFIC INTELLIGENCE, 
Chemistry and i Seeeeae Atom Mechanics, Freck, 258.—On Vortex-rings 
in Air, Bani 
Min —Twentieth Annual Report ofthe Regents of the Univer- 
sity of the State of New York, ete., 262.—On a new large Enaliosaur, Cops, 263.— 
mostraca, Jones and HoLu: On the discovery of a new Pulmonate Mollusk in the 
Coal-formation of Nova Scotia, with a description of the Species, Dawson and 
CARPENTER, 265 —Notes on Heteh-Hetchy Valley, HOFFMANN, 266.—Acadian Ge- 
ology; The G 1 Mineral Resources of Noya 
Scotia, New Bruns swick, and Prince Eawara epost pawns, 267.—On Subaérial 
Denudation, and on Cliffs and Escarpments of the the Lower Tertiary 
HITAKER, 268.—Death of Fishes on the coast of the Bay of Fundy, ADAMS: 
Geological chart of Southern sic representing the dioceses of Christiania, 
Hamar, and Christiansand, KservutFr and DAHL, 269.—Revue de Géologie pour les 
années 1865 et 1866, 270. 
Botany and Zoology.—The Book of ig Hae a practical Treatise on the Conifer- oe 
ere or Cone-bearing Plants, Hoopes, 270.—The Miscellaneous Botanical Works of 4 
obert Brown, BENNETT: The Jouinal of the ne heres Society, Botany, BENTHAM, : 
271.—Théorie de la Feuille, DeCanpoxix, 272.—Obituary announcement, WARD 
and Arnotr: Note on the Polymorphism of the Anthozoa and the seitistere of 
