Vlll CONTENTS.
Number 294.
Page
Akt. XXXV.— Daily March of the Wind Velocities in the
United States ; by F. Waldo -_._ 431
XXXVI. — Preparation of Perchloric Acid and its Applica- tion to the Determination of Potassium ; by D. A. Kreider . 443
XXXVII. — Crystal Form of Borneol and Isoborneol; by
W. H. Hobbs __ 449
XXXVIII. — Synopsis of the Mode of Growth and Develop- ment of the Graptolitic Genus Diplograptus ; by R.
RUEDEMANN 453
XXXIX. — Newly Discovered Dike at DeWitt, near Syra- cuse, New York. Geologic notes by N. H. Darton. Petrographic description; by J. F. Kemp 456
XL. — Note on the amount of Elevation which has taken place along the Rocky Mountain Range in British America since the close of the Cretaceous period ; by Dr. G. M. Dawson ._ 463
XLI. — Three New Analyses of Socialite, from three new
localities ; by L. Mel. Luquer and G. J. Volckening 465
SCIENTIFIC INTELLIGENCE.
Chemistry and Physics — Solution and Pseudo-solution, Linder and Picton : Fluidity of Metals below their Melting Points, Spring, 467. — Light emitted during Crystallization, Bandrowski ; Two-fold Spectra of Oxygen, Baly, 468. — Krafte der Chemischen Dynamik, L. Stettenheimer : Physical Constants of Hydrogen, Olszewski: Color Photography, Neuhaus, 469. — Silvering Glass, M. M. Attguste and L. Lumiere : Form of Sensitive Galvanometer, M. P. Weiss: Diselectrification of Air, Kelvin, M. Maclean and A. Galt, 470. — Beitraege zur Kenntniss des Wesens der Saecular Variation des Erdmagnetismus, L. A. Bauer, 471.— Text Book of the Principles of Physics, A. Daniell, 472.
Geology and Mineralogy — Discovery of a dicotyledonous Flora in the Cheyenne sandstone, R. T. Hill: Geological Aspects of Variation, M. Gosselet, 473. — Geological Survey of Illinois, vol. iv, C. R. Keyes: Geological Survey of New Jersey, 475.— Geological Survey of Iowa, vol. iii: Ueber devonische Pflanzen aus dem Donetz-Becken, Schmalhausen, 476. — Contributions a l'Etude des Feldspaths des Roches Volcaniques, F. Fouque, 477. — Analcite- Diabase from San Luis, Cal., H. W. Fairbanks: Gold in Serpentine. H. W. Turner: Brief Notices of some recently described Minerals, 478. — Elements of Mineralogy, Crystallography and Blowpipe Analysis, A. J. Moses and C. L. Parsons, 480.
Botany — Students' Text-Book of Botany, S. H. Vines, 481. — Cellulose; an out- line of the Chemistry of the structural elements of plants, with reference to their Natural History and Industrial Uses, C. F. Cross, E. J. Bevan and C. Beadle, 482. — Interesting Method of Dissemination, Dusen: Australian Nar- cotics, J. H. Maiden, 483.
Miscellaneous Scientific Intelligence — Science of Mechanics, E. Mach : Dynam- ics : P. T. Glazebrook : ' Few Chapters in Astronomy, C. Kennedy : North American Birds, H. Nehrling, R. Ridgway, A. Goering and G. Muetzel, 484.
Obituary — John H. Redfield: Lothar von Meyer: Carl Vogt, 485.
Index, 486.
