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Art. I.—Contributions to primed 2h being results derived 
CONTENTS OF VOLUME XV. 
NUMBER LXXXV., 
from an examination of the Observations of the United 
States Signal Service, pee from other sources ; ae Exias 
Loomis, Eighth paper. With plates 1 and 2,.-_____._- 1 
—Under-water Oceanic Temperature; by G. E. Betknap, 27 
Ag 
IV. oopeaaieg Effect of Electric Convection ; ; by H. A. Row- 
VE si: sipitex and its Satellites; by Marra Mrrenet, __._ ~~. 38 
VI.—Revision of the Atomic Weight of Anemos: oe 
an F COORE te we a 41 
Jos 
Vil. By fophusphnciias n Anhydrous Pyrophosphate of 
Lime from the West india: ; by C. U. Suusparp, Jr.,.... 49 
SCIENTIFIC INTELLIGENCE. 
e Direct Combustion of Fe itrogen, 
hemistry and Ph nm, KAMMERER: On 
the Relative Beng aigsice of Caves fs for Hydrogen a d Carbonous oxide, Horsr- 
MANN, 51.—On the Sulphides of Platinum, Rrpan, 52 .—On the Destructive Dis- 
tillation of Phat and Chlo’ ett. ra KRAMERS: Boracic Acid, M. L ULAPAIT, 
53.—Photo-electric Phenomena, R. BornsTetN, 54, HANKEL, 5. 55.—Specifie Heat 
of air at constant pressure and constant yolume, H. Kayser : Fluorescence of 
the Retina, 55. 
of Wi in, 61. : 
Biberisn Steppes: co Physiographie der massigen Gesteine, H. 
Rosensuscu, 65.—A Guide to the Determination of Rocks, by E. Jannetaz: 
Tables seal the Seuiiisetion ot Minerals, by P. FRAZER, Jr.: Tridymite in Ire- 
land: ennsylvania, 66. 
ee —The Different Forms of Flowers on Plants of the same Spe- 
cies, c DarRwIs, 67.—Ferns of North America, D. C. Eaton: Notes on 
Botrychium simplex, G. E. DAVENPORT, 72.— Researches in in regard to the in- 
fluence of light i radiant heat upon transpiration in plants, J. WIESNER: 
Ueber Botrydium granulatum; J. Rosrarinski and M. Worontn, 73,—Om 
Spetsbergens marina Klorofyll forande — 74. —Felei e Bi ay . 
ae affini — a Borneo: Notes on Botrychium simp 
te on the Habits of young Tinie, a AGassiz, 75. nie Se. 
sn of ena a from the Jurassic; O. C. Mars 
Astronomy.—The Nag Meteors: On Schmidt’s en Cygni, 76.--The Report | 
of Professor Pickeri 
—Norwegian Exploring eg ther sone ogi 
Miscellaneous Scientific ee nana 
of Weisbach’s Mechanics, 78.—A New Treatise on Steam Engineering, ete. : 
List of Writings relating to | , MERRIMAN: 
Elements of the Method of Least Squares, by M. MERRIMAN: Royal Society, 79. 
Obituary.—Jared Potter Kirtland, 86. 
