EDINBURGH: ADAM AND CHARLES BLACK. LONGMAN, BROWN, GREEN, & LONGMANS, LONDON.
EDINBURGH: PRINTED BY NEILL AND COMPANY, OLD FISHMARKET.
ART. I. Geographical Distribution of Animals. By Professor LOUIS AGASSIZ:--
Different Views on the Subject.--Results of Geological Observations.--Facts and Suppositions.--Natural Limits for Animals.--Limitations and Adaptations.--Influence of Heights and Depths.--Distribution of Mammalia.--Creations on each Continent.--Zoological Provinces.--General Conclusion, 1-25
Additional Illustrations of the Geographical Distribution of Animals:--
1. Geographical Distribution of Sturgeons, 25
2. Fishes of Lake Superior compared with those of the other great Canadian Lakes, 27
3. General Observations; all Fresh-water Fishes of North America different from those of Europe--Lake Superior and the Lakes north of it constitute a distinct Zoological District--These Fishes have been created where they now live--Deductions from this fact, 30
II. On the Geography and Geology of the Peninsula of Mount Sinai, and the adjacent Countries. By JOHN HOGG, M.A., F.R.S., F.L.S.; Honorary Secretary of the Royal Geographical Society, &c. (With a coloured Geological Map.) Communicated by the Author. (Continued from Vol. xlviii., p. 219), 33
III. Synopsis of Meteorological Observations made at the Observatory, Whitehaven, Cumberland, in the year 1849. By JOHN FLETCHER MILLER, Esq., F.R.S., F.R.A.S., &c. Communicated by the Author, 53
IV. The Completed Coral Island. By JAMES D. DANA, Geologist to the American Exploratory Expedition, &c., &c., 65
V. Biographical Notice of Leopold Pilla, the Geologist. By H. COQUAND. Communicated by the Author, 68
VI. On the Chronological Exposition of the Periods of Vegetation, and the different Floras which have succeeded each other on the Earth's surface. According to the views of M. BRONGNIART. (Concluded from Vol. xlviii., p. 330):--
Fossil Plants of the Permian Period.--Vosgian Period.--Jurassic Period.--Tertiary Period, 72-97
VII. Glacial Theory of the Erratics and Drift of the New and Old Worlds. By Professor AGASSIZ:--
Glacialists and Antiglacialists.--Erratic basins of Switzerland.--Similar phenomena observed in other parts of Europe.--Points necessary to be settled; first, the relation in time and character between the Northern and the Alpine erratics.--Traced in North America.---Not yet settled whether any local centres of distribution in America; but the general cause must have acted in all parts simultaneously. This action ceased at 35° north latitude; this incompatible with the notion of currents.--In both hemispheres a direct reference to the Polar Regions. Difficulty as to so extensive formation of Ice, removed; difficulties on the theory of Currents, the effects contrary to experience of Water-Action.--Erratic phenomena of Lake Superior.--The Iceberg theory.--Description of appearances at Lake Superior.--Drift: contains mud, and is without fossils.--Example of juxtaposition of stratified and unstratified Drift, at Cambridge.--Date of these phenomena not fully determined, but doubtless simultaneous all over the Globe.--The various periods and kinds of Drift distinguished.--Accompanied by change of level in the Continent, 97-98