PREFACE 



Of the six chapters which constitute this con- 

 cluding volume of G. J. Romanes' Darwin, and after 

 Darwin^ three, the first two and the last, were '}n 

 type at the time of his death. I have not considered 

 myself at liberty to make any alterations of moment 

 in these chapters. For the selection and arrange- 

 ment of all that is contained in the other three 

 chapters I am wholly responsible. 



Two long controversial Appendices have been 

 omitted. Those marked A and B remain in accord- 

 ance with the author's expressed injunctions. In 

 a third, marked C, a few passages from the author's 

 note-books or MSS. have been printed. 



The portrait of the Rev. J. Gulick, which forms the 

 frontispiece, was prepared for this volume before the 

 author's death. Mr. Gulick's chief contributions to 

 the theory of physiological selection are to be found 

 in the Linnean Society's Journal {Zoology, vols, xx 



