EDINBURGH NEW PHILOSOPHICAL JOURNAL, EXHIBITING A VIEW OF THE PROGRESSIVE DISCOVERIES AND IMPROVEMENTS IN THE SCIENCES AND THE ARTS. CONDUCTED BY ROBERT JAMESON, REGIUS PROFESSOR OF NATURAL HISTORY, LECTURER ON MINERALOGY, AND KEEPER OF THE MUSEUM IN THE UNIVERSITY OF EDINBURGH; Fellow of the Royal Societies of London and Edinburgh; Honorary Member of the Royal Irish Academy; of the APRIL 1850 .... OCTOBER 1850. VOL. XLIX. TO BE CONTINUED QUARTERLY. EDINBURGH: ADAM AND CHARLES BLACK. LONGMAN, BROWN, GREEN, & LONGMANS, LONDON. 1850. CONTENTS. 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.-Zoolo- Additional Illustrations of the Geographical Distri- 1. Geographical Distribution of Sturgeons, 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 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 PAGE 1-25 |