The Antiquity of Man | Page 7

considered. Causes of the Popularity of the Doctrine of Progression as compared to that of Transmutation.

CHAPTER 21.
ON THE ORIGIN OF SPECIES BY VARIATION AND NATURAL SELECTION.
Mr. Darwin's Theory of the Origin of Species by Natural Selection. Memoir by Mr. Wallace. Manner in which favoured Races prevail in the Struggle for Existence. Formation of new Races by breeding. Hypotheses of definite and indefinite Modifiability equally arbitrary. Competition and Extinction of Races. Progression not a necessary Accompaniment of Variation. Distinct Classes of Phenomena which Natural Selection explains. Unity of Type, Rudimentary Organs, Geographical Distribution, Relation of the extinct to the living Fauna and Flora, and mutual Relations of successive Groups of Fossil Forms. Light thrown on Embryological Development by Natural Selection. Why large Genera have more variable Species than small ones. Dr. Hooker on the Evidence afforded by the Vegetable Kingdom in favour of Creation by Variation. Steenstrup on alternation of Generations. How far the Doctrine of Independent Creation is opposed to the Laws now governing the Migration of Species.

CHAPTER 22.
OBJECTIONS TO THE HYPOTHESIS OF TRANSMUTATION CONSIDERED.
Statement of Objections to the Hypothesis of Transmutation founded on the Absence of Intermediate Forms. Genera of which the Species are closely allied. Occasional Discovery of the missing Links in a Fossil State. Davidson's Monograph on the Brachiopoda. Why the Gradational Forms, when found, are not accepted as Evidence of Transmutation. Gaps caused by Extinction of Races and Species. Vast Tertiary Periods during which this Extinction has been going on in the Fauna and Flora now existing. Genealogical Bond between Miocene and Recent Plants and Insects. Fossils of Oeningen. Species of Insects in Britain and North America represented by distinct Varieties. Falconer's Monograph on living and fossil Elephants. Fossil Species and Genera of the Horse Tribe in North and South America. Relation of the Pliocene Mammalia of North America, Asia, and Europe. Species of Mammalia, though less persistent than the Mollusca, change slowly. Arguments for and against Transmutation derived from the Absence of Mammalia in Islands. Imperfection of the Geological Record. Intercalation of newly discovered Formation of intermediate Age in the chronological Series. Reference of the St. Cassian Beds to the Triassic Periods. Discovery of new organic Types. Feathered Archaeopteryx of the Oolite.

CHAPTER 23.
ORIGIN AND DEVELOPMENT OF LANGUAGES AND SPECIES COMPARED.
Aryan Hypothesis and Controversy. The Races of Mankind change more slowly than their Languages. Theory of the gradual Origin of Languages. Difficulty of defining what is meant by a Language as distinct from a Dialect. Great Number of extinct and living Tongues. No European Language a Thousand Years old. Gaps between Languages, how caused. Imperfection of the Record. Changes always in Progress. Struggle for Existence between rival Terms and Dialects. Causes of Selection. Each Language formed slowly in a single Geographical Area. May die out gradually or suddenly. Once lost can never be revived. Mode of Origin of Languages and Species a Mystery. Speculations as to the Number of original Languages or Species unprofitable.

CHAPTER 24.
BEARING OF THE DOCTRINE OF TRANSMUTATION ON THE ORIGIN OF MAN, AND HIS PLACE IN THE CREATION.
Whether Man can be regarded as an Exception to the Rule if the Doctrine of Transmutation be embraced for the rest of the Animal Kingdom. Zoological Relations of Man to other Mammalia. Systems of Classification. Term Quadrumanous, why deceptive. Whether the Structure of the Human Brain entitles Man to form a distinct Sub-class of the Mammalia. Intelligence of the lower Animals compared to the Intellect and Reason of Man. Grounds on which Man has been referred to a distinct Kingdom of Nature. Immaterial Principle common to Man and Animals. Non-discovery of intermediate Links among Fossil Anthropomorphous Species. Hallam on the compound Nature of Man, and his Place in the Creation. Great Inequality of mental Endowment in different Human Races and Individuals developed by Variation and ordinary Generation. How far a corresponding Divergence in physical Structure may result from the Working of the same Causes. Concluding remarks.
NOTES.
(PLATES AND FIGURES.
PLATE 1. A VILLAGE BUILT ON PILES IN A SWISS LAKE.
FIGURE 1. SECTION OF THE NEANDERTHAL CAVE.
FIGURE 2. SIDE VIEW OF THE CAST OF PART OF A HUMAN SKULL FOUND BY DR. SCHMERLING EMBEDDED AMONGST THE REMAINS OF EXTINCT MAMMALIA IN THE CAVE OF ENGIS.
FIGURE 3. SIDE VIEW OF THE CAST OF A PART OF A HUMAN SKULL FROM A CAVE IN THE NEANDERTHAL.
FIGURE 4. OUTLINE OF THE SKULL OF AN ADULT CHIMPANZEE, OF THAT FROM THE NEANDERTHAL, AND OF THAT OF A EUROPEAN.
FIGURE 5. SKULL ASSOCIATED WITH GROUND FLINT IMPLEMENTS.
FIGURE 6. OUTLINES OF THE SKULL FROM THE NEANDERTHAL, OF AN AUSTRALIAN SKULL FROM PORT ADELAIDE, AND OF THE SKULL FROM THE CAVE OF ENGIS.
FIGURE 7. SECTION ACROSS THE VALLEY OF THE SOMME IN PICARDY.
FIGURE 8. FLINT IMPLEMENT FROM ST. ACHEUL, NEAR AMIENS, OF THE SPEAR-HEAD SHAPE.
FIGURE 9. OVAL-SHAPED FLINT HATCHET FROM MAUTORT.
FIGURE 10. FLINT TOOL FROM ST. ACHEUL.
FIGURES