CONTENTS OF No. 2, NOVEMBER, 1898. 



I. The Ovarian Egg of Limulus. A Contribution 

 to the Problem of the Centrosonie and Yolk- 



Nuelens 1 11-220 



John P. Munson. 



II. The Lateral Line System of Batracktis Tau . . 223-264 

 Cornelia M. Clapp. 



III. Comparative Cytological Studies, tvith Especial 



Regard to the Morphology of the Nucleolus . 265-582 

 Thos. H. Montgomery, Jr., Ph.D. 



Wat atftenffum '^nii, 



GINN & COMPANY, BOSTON, U.S.A. 



