IV CONTENTS OF VOLUME XVII. 



No. 5. OCTOBER, 1909 



SCOTT, JOHN W. Some Egg-laying Habits of Amphitrite ornata 



Verrill 327 



MAYER, ALFRED G. On the Use of Magnesium in Stupefying 



Marine Animals 341 



SCOTT, G. G. Regeneration in Fundulus and its Relation to the 



Size of the Fish 343 



MURBACH, L. Some Light Reactions of the Medusa Gonionemus. 354 



No. 6. NOVEMBER, 1909 



HARGITT, CHAS. W. New and Little Known Hydroids of Woods 



Hole 369 



SCOTT, WILL. An Ecological Study of the Plankton of Shawnee 



Cave 386 



