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DARWINIANA
PREFACE ARTICLE I
THE ORIGIN OF SPECIES BY MEANS OF NATURAL SELECTION
Views and Definitions of Species--How Darwin's differs from that of Agassiz, and from the Common View--Variation, its Causes unknown.--Darwin's Genealogical Tree--Darwin and Agassiz agree in the Capital Facts--Embryology--Physical Connection of Species compatible with Intellectual Connection--How to prove Transmutation.--Known Extent of Variation--Cause of Likeness unknown--Artificial Selection.--Reversion--Interbreeding--Natural Selection.--Classification tentative.--What Darwin assumes.--Argument stated.--How Natural Selection works.--Where the Argument is weakest.--Objections--Morphology and Teleology harmonized.--Theory not atheistical.--Conceivable Modes of Relation of God to Nature
ARTICLE II
DESIGN VERSUS NECESSITY-- A DISCUSSION
How Design in Nature can be shown--Design not inconsistent with Indirect Attainment
NATURAL SELECTION NOT INCONSISTENT WITH NATURAL THEOLOGY
Part II--Limitations of Theory conceded by Darwin.--What Darwinism explains.--Geological Argument strong in the Tertiary Period.-- Correspondence between Rank and Geological Succession--Difficulties in Classification.--Nature of Affinity.--No Absolute Distinction between Vegetable and Animal Kingdoms.--Individuality.--Gradation
ARTICLE IV
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
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