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Mineralogy and Geology.-Note on the supposed Fossil Footmarks in Kansas, by C.
H. HITCHCOCK, 132.-On Ivigtite, by G. HAGEMANN, 133.-Notes on the Chemical
Geology of the Gold-fields of California, by J. ARTHUR PHILLIPS, 134.-Gold in
Rhinebeck, Dutchess county, New York, 139.
Botany.-Botanical Necrology for 1868, GEORGE A. WALKER-ARNOTT, 140: NATHAN-
IEL BAGSHAW WARD, 141: EDWARD POPPIG, Dr. SCHNITZLEIN and FRANÇOIS
DELESSERT, 142: HORACE MANN: Index to the Native and Scientific names of
Indian and other Eastern Economic Plants and Objects, by J. FORBES WATSON:
Synopsis Filicum, or Synopsis of all known Ferns, including the Osmundaceæ,
Schizæaceæ, Marattiaceæ and Ophioglossaceæ, by Sir WILLIAM JACKSON HOOKER
and JOHN GILBERT BAKER, 143.-Plantæ Wrightianæ Cubenses, WRIGHT, 144.
Miscellaneous Scientific Intelligence.-The Flow of the Great Lakes, 145.
Miscellaneous Bibliography.-How Crops Grow; a Treatise on the Chemical Com-
position, Structure and Life of the Plant, by SAMUEL W. JOHNSON, 147.-Outlines
of Comparative Anatomy and Medical Zoology, by HARRISON ALLEN, 149.-A
List of the Birds of New England, by ELLIOTT COUES: Synopsis of the Birds of
South Carolina, by ELLIOTT COUES: The Butterflies of North America, by Wм.
H. EDWARDS: Extra Digits, by BURT G. WILDER: The Natural Wealth of Call-
fornia, &c., by TITUS TEY CRONISE, 150.-Outlines of Physiology, Human and
Comparative, by JOHN MARSHALI.: Reliquiæ Aquitanicæ: Geological Survey of
Illinois, WORTHEN, 151.
Proceedings of Societies, 152.
NUMBER CXL.
Page.
153
ART. XL-On some phenomena of Binocular Vision; by
Prof. JOSEPH LECONTE,
XII.-Contributions to Chemistry from the Laboratory of
the Lawrence Scientific School. No. 6.-On a new Salt
containing Tin, Cæsium and Chlorine; by S. P. SHARPLES, 178
XIII.-Upon the Atomic Volumes of Liquids; by FRANK
WIGGLESWORTH CLARKE,
180
XIV. On the Occultator; by Prof. LEWIS R. GIBBES,
XV.-On the wave lengths of the Spectral Lines of the Ele-
191
ments; by WOLCOTT GIBBS,
194
XVI.-On the condition of our knowledge of the Processes
in Luminous Flames; by EUGENE W. HILGARD,
XVII.—A notice of some Manuscripts in Central American
Languages; by DANIEL G. BRINTON,
XVIII.-Notices of New Meteoric Irons in the United
States; by CHARLES UPHAM SHEPARD,-
XIX.-On Nitrification; by S. W. JOHNSON,
218
222
230
234
XX.-Geological Notes on the Andes of Ecuador; by JAMES
ORTON,
XXI.-Observations upon Autumnal Foliage; by JOSEPH
WHARTON,
242
251
XXII.-On a Modified Form of the Nitrate of Silver Test
for Arsenic Acid; by CHARLES E. AVERY,-
XXIII.-Notices of papers in Physiological Chemistry; by
GEORGE F. BARKER. No. II.....
255
258
XXIV.-A New Meteoric Iron-"The Wisconsin Meteor-
ites"-with some remarks on the Widmanstättian Fig-
ures; by J. LAWRENCE SMITH,
SCIENTIFIC INTELLIGENCE.
271
Physics and Chemistry.-On the wave lengths of the metallic rays, THALEN, 272.
-On spectral analyses: On a normal spectrum of the sun, FIZEAU: On the red
protuberances from the surface of the sun, 273.-Further observations on the
spectra of some of the stars and nebulæ, etc., HUGGINS, 274.
Mineralogy and Geology.-Recherches Anatomiques et Paléontológiques pour servir
à l'histoire des Oiseaux fossiles de la France, par A. MILNE EDWARDS, 276.-Re-
port on recent Explorations in the Gibraltar Caves, by FRED. BROME, 277.-
On Calamiteæ and Fossil Equisetaceæ, by WILLIAM CARRUTHERS: Geological
Map of New Jersey, by GEORGE H. COOK: New Geological Map of Wisconsin,
by I. A. LAPHAM: Reliquiæ Aquitanicæ, 279.-Gold in Scotland, 280.
Botany and Zoology.-Field, Forest, and Garden Botany, a simple introduction to
the common plants of the United States east of the Mississippi, both wild and
cultivated, by ASA GRAY: Are Unios sensitive to light? note by C. A. WHITE, 280.
-Critical Remarks on Halcyonoid Polyps; No. 3, by A. E. VERRILL, 282.-On
the Distribution of Fresh-water Fishes in the Allegheny Region of South West-
ern Virginia, by E. D. COPE: Catalogue of the Reptiles and Batrachians found in
the vicinity of Springfield, Mass., with Notices of all other Species known to in-
habit the State, by J. A. ALLEN, 285.-Notes on Radiata in the Museum of
Yale College, No. 6.-Review of the Corals and Polyps of the West Coast of
America, by A. E. VERRILL: Annual Report of the Trustees of the Museum of
Comparative Zoology, 286.
Astronomy.-Meteors in August, 1868: Le Stelle Cadenti del Periodo di Agosto, os-
servate in Piemonte ed in altre Contrade d'Italia nel 1868: Error in Stanley's
Logarithmic Tables, 287.
Miscellaneous Scientific Intelligence.-Convention of American Philologists, 287.-
Gynecological Society, of Boston, 288.-Obituary.-Carl Friederich Philipp von
Martius, 288.-John Cassin, 291.-Prof. Theodore Strong, 293.-James David
Forbes: Dr. Hörnes, 294.
Miscellaneous Bibliography.—Handbook of Chemistry, for School and Home use, by
W. J. ROLFE and J. A. GILLET, 294.-Van Nostrand's Eclectic Engineering Mag-
azine: Annual Report of the Board of Regents of the Smithsonian Institution:
The Manufacturer and Builder: Blank Maps for marking the distribution of
Plants and Animals, 295.-Le Naturaliste Canadien, 296.
Proceedings of Societies, etc., 296.
NUMBER CXLI.
ART. XXV.—On the Variability of Personal Equation in
Transit Observations; by WILLIAM A. ROGERS,
XXVI.-Upon the Atomic Volumes of the Elements; by
FRANK WIGGLESWORTH CLARKE, -
XXVII.-Contributions from the Laboratory of the Law-
rence Scientific School. No. 7.-On some Minerals
from Newlin Township, Chester Co., Penn., described
by Dr. Isaac Lea; by S. P. SHARPLES,
297
308
319
XXVIII.-On the Washing of Precipitates; by R. BUNSEN, 321
XXIX.-Note upon the origin of the Phosphatic Formation;
by C. U. SHEPARD, Sr.,
XXX.-A Point in the Geology of Western Vermont; by
the Rev. J. B. PERRY,
XXXI.-On some derivatives of Trichlormethyl-sulphon-
chlorid, (CC13)SO2C1; by O. LOEW,
338
341
350
XXXII.-Note on the structure of the Blastoidea; by E.
BILLINGS,
353
XXXIII.-Notes on the occurrence and composition of the
Nodular Phosphates of South Carolina; by CHARLES
U. SHEPARD, Jr.
354
XXXIV.-Notes on American Fossiliferous Strata; by T.
A. CONRAD,
358
XXXV.-On certain Phenomena of Transmitted and Dif-
fused Light; by M. CAREY LEA,
364
XXXVI.-Process for determining the Carbon chemically
combined with Iron; by Prof. EGGERTZ,
374
XXXVII-Geographical Notices; by D. C. GILMAN,
XXXVIII.-The Cohahuila Meteoric Irons of 1868, Mexico;
by J. LAWRENCE SMITH,
383
XXXIX.-Atomic Ratio; by JOSIAH P. COOKE, Jr.,------- 386
XL.-Notice of some New Reptilian Remains from the
Cretaceous of Brazil; by Prof. O. C. MARSH,
XLI.-Notices of papers in Physiological Chemistry-No.
II; by GEORGE F. BARKER,
390
393
XLII.-Meteors of November 14th, 1868; by H. A. NEWTON, 399
XLIII-A proposed Arrangement for Observing the Corona,
and Searching for intra-Mercurial Planets during a To-
tal Eclipse of the Sun; by SIMON NEWCOMB,
SCIENTIFC INTELLIGENCE.
413
Physics and Chemistry.—On the refrangibility of the brilliant yellow ray of the sun's
atmosphere, 415.-On the presence of the vapor of water in the neighborhood of
the solar spots and on the spectral study of certain stars, 416.-Spectral obser-
vations of the star R in Gemini, SECCHI: On absorption lines produced by the
passage of the solar light through chlorine, MORREN: On hydrogen in its relation
to palladium, GRAHAM, 417.-Production of an artificial spectrum with a single
Fraunhofer's line: On the analysis of different varieties of carbon, BERTHELOT,
418.-On the direct synthesis of Cyanhydric acid, BERTHELOT: On the Ammo-
nium amalgam, LANDOLT, 420.-On a new method for preparing Carbonylic Sul-
phid, BERTHELOT: On Carbonylic Sulphid, BENDER, 422.-On carbonylic chlorid,
and a new compound of this substance with platinum, SCHÜTZENBGRGER, 423.—
On the relation between boiling point and constitution of hydrocarbons, SCHOR-
LEMMER, 424.-On a new source of octylic Alcohol, 425.-Tritylic (propylic) al-
cohol produced by fermentation: On the reduction of acetic oxyd to ethylic al-
cohol: On the alcohol obtained by the saponification of castor oil, 426.-On Sul-
pho-carbamid, 428.
Geology.-On a Mineral Phosphate from the island of Redonda, W. I.; by CHARLES
UPHAM SHEPARD, 428.-Final Report on the Geology of New Jersey; by GEO.
H. COOK, 430.
Zoology.-Are Unios sensitive to light? by ISAAC LEA, 430.
Miscellaneous Scientific Intelligence.-On the use of sodium in explosive powders,
Dr. H. FLECK, 431.-Decrease in the Production of Gold, BLAKE, 432.-Dana's
System of Mineralogy, 433.-Obituary.-J. Nicklès: William Mitchell, 434.
Miscellaneous Bibliography.—Handy Book of Meteorology, by ALEXANDER BUCHAN:
Annual of Scientific Discovery, by SAMUEL KNEELAND, 434.-First Principles of
Chemical Philosophy, by J. P. COOKE: Outlines of Physiology, Human and
Comparative, by JOHN MARSHALL: The Ornithological Collection of John Cas-
sin, 435.-Catalogue of the Orthoptera of North America, described previous to
1867, by S. H. SCUDDER: Memoirs of the Peabody Academy of Science: Bulle-
tin of the Essex Institute, 436.
Proceedings of Societies, etc., 436.
ERRATA.
Page 193, line 3 from top, for "declination" read "co-declination." "364, line 10 from bottom, read "one to two thousand."