CONTENTS. 
Page, - 
Art. XXXVI.—Red and Purple Chloride, Bromide and 
Todide of Silver; by M. Canny La 222-2 2220 eae 349 
XXXVII.—Inter-relation of Contemporaneous Fossil Faunas 
and Ploras’;“by GC. A. Ware 2 ee ee 364 
XXXVIIL—Eozoonal Rock of Manhattan Island; by L. P. 
(GRATACAP oes oS Sa es a 
XXXIX.—Terminal Moraines in Maine; by Gro. H. Stone 378. 
XL.—Note on the enlargement of Hor nblendes and Augites 
in Fragmental and Eruptive Rocks; by C. R. Van Hise 385 
XLI.—Great Acadian Paradoxides; by G. F. Marraew.... 388 
XLI.—Kin of Paradoxides (Olenellus ?) Kjerulfi; by G. F. 
MATTHEW 222 230s o0 Sie Pee ee 
XLITI.—Taconic Rocks and Stratigraphy, with a Geoijogical 
Map of the Taconic Region (Plate XI); by J. D. Dana 393 
SCIENTIFIC INTELLIGENCE. 
Chemistry and Physics —Generation .of Chlorine gas in Kipp’s apparatus, 
WINKLER: Action of Kaolin on the alkali chlorides, GorGEU, 4! 9.—Distribution 
in the soil of the nitrifying organisms, WARINGTON, 420,—Absorption of Gases 
by Carbon, Baker: Valence of Bismuth, MicHantis, 421.—Action of Phos- 
phorie chloride on Ethyl acetondicarbonate, BURTON and VON PECHMANN: 
Behavior of Iron and Steel under the operation of feeble magnetic forees, _ 
RAYLEIGH: Movements of the Wings of Birds, represented according to three 
dimensional space, MAREY, 422.—Maenetic effect of Earthquakes: Heat of the 
Sun, FROLICH, 423. 
Geology and Natural History.—Bulletin of the American Museum of Natural 
History, New York: Brief notices of some recently described minerals, 423.— 
Materialen zur Mineralogie Russlands, N. von KoxscHarow, 424.— Relation of 
Schorlomite to Garnet, Kate, 425. 
Botany.—Botanical Notes, 425.—Outlines of Classification and Special Morphology 
of Plants, 427. 
Astronomy.—The Astronomical Journal: Comets in 1886, 428'—Comets in 1887: 
Henry Draper Memorial, Pickerine: U. 8. Coast and Geodetic Survey, 429. 
Miscellaneous Scientific Intelligence.—Die Hochseen der Ostalpen, A. BOuM, 431.— 
American Association: Agriculture in some of its relations with Chemistry : 
National Academy of Sciences, 432. 
HRRATUM. 
Vol. xxxili, p. 291, in foot-note, Jahrb. Berg-Hiitt., for “1877” read 1887.” 
