SPECIES AS TO VARIATION, GEOGRAPHICAL DISTRIBUTION, AND SUCCESSION
Alphonse De Candolle's Study of the Oak Genus.—Variability of the Species.—Antiquity.—A Common Origin probable.—Dr. Falconer on the Common Origin of Elephants—Variation and Natural Selection distinguished.—Saporta on the Gradation between the Vegetable Forms of the Cretaceous and the Tertiary.—Hypothesis of Derivation more likely to be favored by Botanists than by Zoologists.—Views of Agassiz respecting the Origin, Dispersion, Variation, Characteristics, and Successive Creation of Species contrasted with those of De Candolle and others—Definition of Species—Whether its Essence is in the Likeness or in the Genealogical Connection of the Individuals composing a Species
ARTICLE V
SEQUOIA AND ITS HISTORY: THE RELATIONS OF NORTH AMERICAN TO NORTHEAST ASIAN AND TO TERTIARY VEGETATION
Age and Size of Sequoia.—Isolation.—Decadence.—Related Genera.— Former
Distribution.—Similarity between the Flora of Japan and that of the United
States, especially on the Atlantic Side.—Former Glaciation as explaining
the Present Dispersion of Species.—This confirmed by the Arctic Fossil
Flora of the Tertiary Period.—Tertiary Flora derived from the Preceding
Cretaceous.—Order and Adaptation in Organic Nature likened to a
Flow.—Order implies an Ordainer
ARTICLE VI
THE ATTITUDE OF WORKING NATURALISTS TOWARD DARWINISM
General Tendency to Acceptance of the Derivative Hypothesis noted.—Lyell,
Owen, Alphonse De Candolle, Bentham, Flower, Ailman.— Dr. Dawson's "Story
of the Earth and Man" examined.—Difference between Scientific Men and
General Speculators or Amateurs in the
Use of Hypotheses