CONTENTS OF VOL. X. 



No. I. — January, 1895. 



Pages 



I. Frank R. Lillie. 



The Embryology of the Unionidae . . . i-ioo 



II. Oliver S. Strong. 



The Cranial Nerves of Amphibia . . . 101-230 



III. Pierre A. Fish. 



The Central Nervous System of Desmo- 

 gnathiis Fnsca 231-286 



IV. W. K. Brooks. 



The Sensory Clubs or Cordyli of Lao dice . 287-304 



V. William Morton Wheeler. 



The Behavior of the Centrosomes in the 

 Fertilized Egg of Myzostoma Glabrum, 

 Leuckart 305-311 



VI. A. D. Mead. 



Some Observations on Maturation and 

 Fecundation in Chactopterus Perga- 

 mentaceuSy Cuvier 313-3^7 



VII. Edmund B. Wilson and Albert P. 



Mathews. 



Maturatiott, Fertilization, and Polarity in 

 the Echinoderm Egg. New Light on 

 the '' Quadrille of the Centers'' . . . 319-342 



