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CONTENTS. v 
NUMBER LXXX. 
Arr. XVII. The Atlantic Cable; by Georeze Matutot.—(In a ee 
letter to Prof. A. D. Bacue, Supt. U. 8. Coast Survey.) - 157 
XVIII. On the Variation of the Magnetic Needle at poe 2 
Ohio; by Prof. Erias Loomis, : 1 
XIX. On the Dynamics of Ocean Currents; by ike ‘E. B. sig: 169 
XX. Report on Dupont’s Artesian Well at monenilies Boe by 
Prof. J. Lawrence Situ, M.D.,— - - 174 
XXI. On Modes of increasing the Heat of the “Mouth Bispace, 
and some new a ree by Prof. Henry 
, - 7179. 
XXII. On the Pecisian: - E: - r. Bianadé, Pig. ‘Univ. ° 
Mississippi—with a deusciption of an Electric Clock, con- 
structed by E. S. Ritchie.—With a Plate, 184 
XXIIf. Enumeration of Ferns collected by Mr. Charles Wright, 
in Eastern Cuba in 1856-7; by Daniet C. Eaton, - : 
XXIV. Some observations on the Motions of certain peg. 
Plants; by Prof. Wm. H. Brewer, - 
XV. On some Anomalies in the Florida Gulf Sevens ae on 
their further Investigation ; by Lieut. E. B. Honr 
XXVI. Abstract of a Meteorological Harve aii at Maric 
Ohio 5 by 8S. P. Hitpreta, M.D., - 
XXVIL Remarks on the Lower Cretaceous “re of ‘Riisoas ad 
Nebraska; by F. B. Meex and F. V. Haven, . - 919 
XXVIII. Geographical Notices.—No. VI, . - 227 
XXIX. Analysis of the White Sulphur Water of the Antaae 
Well of Lafayette, scat ied Cuarves M. rie ove 
Ph.D., M.D., : - 241 
XXX. On the Measurement of the Siri of Tilsbends sé W. Ss. 
Suttivant and T. G. WormMLey, - 
XXX. Correspondence of Prof. Jeromr Nicesiecdtie thi nature 
of simple bodies, 252.—Spontaneous Generation, 253.— 
Ozonometry in the Crimea: Dynamoscopy, 254.—Artificial 
Coutchouc, 255.—Photochemical experiments, 257.—Re- — 
production of engravings by means of Phosphorus, agg 
Chemical nomenclature : Bibliography, 259: a 
