VII. BY-PATHS IN THE DOMAIN OF BIOLOGY.
BEING AN ADDRESS DELIVERED TO THE BIOLOGICAL SECTION OF THE BRITISH ASSOCIATION (GLASGOW, SEPTEMBER 6TH, 1876) AS PRESIDENT OF THE SECTION.
Introductory Remarks—On some Relations of Living Things to their Environment.—The Influence of Locality on Colour in Butterflies and Birds—Sense-perception influenced by Colour of the Integuments—Relations of Insular Plants and Insects—Rise and Progress of Modern Views as to the Antiquity and Origin of Man—Indications of Man’s Extreme Antiquity—Antiquity of Intellectual Man—Sculptures on Easter-Island—North American Earthworks—The Great Pyramid—Conclusion
VIII. The Distribution of Animals as Indicating Geographical Changes.
Old Opinions on Continental Changes—Theory of Oceanic Islands—Present and Past Distribution of Land and Sea—Zoological Regions—The Palæarctic Region—The Ethiopian Region—The Oriental Region—Past changes of the Great Eastern Continent—Regions of the New World—Past History of the American Continents—The Australian Region—Summary and Conclusion
TROPICAL NATURE,
AND OTHER ESSAYS.