xiv Contents. 



CHAPTER IV. 



EARLIER THEORIES CONNECTED WITH EVOLUTION. 



The System of Nature Speculations of the Earlier Evolu- 

 tionists Theory of Degradation Inspiration necessarily 

 Opposed to Infallibility Importance of Correct Views 

 of Modern Science and Ancient Literature . . .41 



NOTE. The Book of Genesis . ,49 



CHAPTER V. 



DARWIN AND HIS CRITICS. 



Sketch of the Theory of Natural Selection Objections- 

 Theological Objections Origin of Man Beauty and 

 Design in Nature Mivart's Strictures on Darwinism 

 Sense-Organs Origin of Species not always Gradual 

 Limits of Variability Absence of Transitional Forms 

 Species and Races Bree's Objections to Darwinism . 50 



CHAPTER VI. 



USE AND DISUSE, REVERSION AND HYBRIDISM. 



Vital Energy Its Limits Variations in Offspring of the 

 same Parents Reversion Hybrids and Mongrels 

 Effects of Domestication on Animals . . . .69 



CHAPTER VII. 



HOMOLOGY. 



Probable Unity of Matter Unity of Structure throughout 

 Organic Nature Somites of Annulosa Neck of 

 Vertebrata Rudimentary Organs Organs of the 

 Senses Homology of the Sexes Homology only to 

 be explained by Evolution 



CHAPTER VIII. 



EMBRYOLOGY. 



Importance of Embryological Characters in Classification 

 Close Resemblance of Early Stages of Embryos Rudi- 

 mentary Organs in the Embryo Ancestral Characters 

 Gradually Transferred to Embryo Importance of this 

 Principle 95 



