APPENDIX 



REFERENCES to general and special treatments of the subjects in- 

 cluded in this book, arranged according to chapters. These references 

 are confined to books and papers published in English (including trans- 

 lations of foreign works) and are intended for the assistance of general 

 readers and elementary students wishing to follow up, in more detail 

 than is offered in this book, the study of any particular phase of the 

 general subject of Evolution. These references are therefore mostly 

 not to original papers, but to manuals, summaries, and digests of 

 evolution subjects. The list makes no attempt, of course, to include 

 all of even the most general works of reference. 



CHAPTER I. EVOLUTION DEFINED. 



Spencer : Principles of Biology, vol. I, part iii, 1875. Conn : Evolution 

 of To-day, pp. 1-21, 1889. Le Conte: Evolution, Its Nature, Its 

 Evidences, and Its Relation to Religious Thought, pp. 3-31, 1888. 

 Haeckel: History of Creation, vol. I, ch. i, 1892. Marshall: Dar- 

 winian Theory, pp. 1-24, 1894. Williams: Geological Biology, 

 pp. 371-384, 1895. Romanes: Darwin and After Darwin, vol. 



I, pp. 12-22, 1896. Marshall: Biological Lectures, pp. 1-26, 

 1897. Howison : Limits of Evolution, pp. 12-48, 1901. Huxley: 

 Darwiniana, 1894. 



CHAPTER II. VARIETY AND UNITY OF LIFE. 

 Jordan: Footnotes to Evolution, ch. i and ii, 1902. 



CHAPTER III. LIFE, ITS PHYSICAL BASIS AND SIMPLEST EXPRESSION. 



Verworn: General Physiology, 1899. Wilson: Chapters on Evolution, 

 pp. 61-79, 1883. Haeckel: History of Creation, vol. I, ch. xv; vol. 



II, ch. xvii and xviii, 1892. Huxley: On the Physical Basis of 

 Life (ch. iii, in Essays on Method and Results). Marshall: Bio- 

 logical Lectures, pp. 114-191, 1897. Conn: The Method of Evo- 

 lution, ch. ix, 1900. Jordan and Kellogg: Animal Life, ch. i, ii, and 

 iv, 1900. McFarland: The Physical Basis of Heredity, ch. vi in 

 Jordan's Footnotes to Evolution, 1902. Wilson: The Cell in 

 Development and Inheritance, 2d ed., 1904. Weismann: The 

 Evolution Theory, vol. II, Lect. 36, 1904. 



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