CONTENTS. 



LECTURE PAGE 



I. The Mosaic Theory of Development. E.B.Wilson. i 



II. TJie Fertilization of the Oviivi. E. G. Coxklix . 15 



III. On Some Faets and Prineiples of Physiological 



Morphology. J. Loeb -^J 



IV. Dynamics in Evolution. J. A. Ryder .... 61 



V. On the Xature of Cell Organization. S. Watase . "^l 



VI. The Inadequacy of the Cell- Theory of Development. 



C. O. Whitmax 105 



VII. Bdellostoma Dombeyi, Lac. Howard Avers . . 125 



VIII. The Influence of External Conditions on Plant 



Life. W. P. Wilson 163 



IX. Irrito-Contractility in Plants. J. Muirhead Mac- 



farlane 185 



X. The Marine Biological Stations of Europe. Bash- 

 ford Deax 211 



Appendix — The Work and the Aims of the Ma- 



ritie Biological Laboratory. C. O. Whitman. 235 



