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Physics and Chemistry.-On the wave lengths of the metallic rays, TAALEN, 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.-
Gynæcological 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.
Page 193, line 3 from top, for“ declination " read “co-declination."
364, line 10 from bottom, read "one to two thousand."