CONTENTS. v 
Page. 
XIX. Notice of a Geological Map of the United States and the 
British Provinces of North America, by J. Marcou, - 199 
XX. On the Chemical Composition of the minerals ikck em 
Apatite; by J. D. Wairney, - 206 
XXI. Contributions to Chemical Mincretogy: : by sete D. tisk 210 
II. On Microscopes with large Angles of Aperture; by Dr. 
E. D. Norra, - : - - : - - - 221 
XXIII. Further Notes on Cereus giganteus of Southeastern Cali- 
fornia, with a short account of another allied sponse in So- 
nora; by Dr. Georce ENGELMANN, : - - 231 
XXIV. On the Composition of Recent and Fossil Sangean, and 
some other shells; by W. E. Logan, F.R.S., and T. S. Hunt, 235 
XXV. Ona new Meteorite from New Mexico; by Dr. F.A. Gent, 239 
XXVI. Introductory Essay, in Dr. Hooker’s Flora of New Zealand, 241 
XXVII. On the relations which exist between Friction and Pres- 
by M. J. Nicxés, . 252 
XXVIIL. itnareet of a Meteorological Seca for io year - 1853, 
kept at Marietta, Ohio; by S. P. Hitpreru, M.D., - = 355 
XXIX. On the Eye and the Organ of Hearing in the Blind Fishes 
of the Mammoth Cave ; by Jerrries Wyman, M.D., - 258 
XXX. Additional Note to Researches on the Development of the 
Viviparous Aphides ; by W. I. Burnerr, M.D., : - 261 
XXXI. Correspondence of M. Jerome Nickuzs—Academy of 
Sciences; Election of a Perpetual Secretary, 262.—Publi- 
cation of the works of Arago and Laurent, 263.—Death of 
Theodore Olivier: On the Proximate principles of Bran of 
Wheat, 264.—On the Ammonia contained in Rain-water :- 
Heating of Wire by the Voltaic Current, 265.—Various 
Memoirs, 266.—Chemical reactions effected under the influ- 
ence of High Pressure: Heating Apparatus, 267.—Eco- 
‘nomical Manufacture of Bi-chromate of Potash, 269.—Pho- 
tography, 270.—On four new Quinquinas, 271. 
Arrenpix.—Notice of a collection of Fishes from the southern 
bend of the Tennesseé River, Alabama; by L. Acassiz, 297 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics. —Bartlett's Elements of Analytical Mechanics, 271.—Dars ted 
der Secalehn und optische Studien von H. W. Dové: Einleitung in die hé 
Optik von Dr. Aucusr Beer, 272.—Die Lehre von der Reibungselektricitiit von PD as: 
Ress, 273—On the Absolute Zero of the Perfect Gas Thermometer, by W. J. er 
Quorn Ranxive, Esq.: Aridium, by Campari Morrit and James C. tiie A 
fh - 
is 
