iy CONTENTS. 



HOY, W. E., JR. A Study of Somatic Chromosomes. I 329 



WALTON, ARTHUR C. Ascaris canis (Werner] and Ascaris felis 



(Goze), A Taxonomic and a Cytological Comparison 364 



MAYOR, JAMES W. On the Occurrence of a Parasite of the Pike 

 in Europe, Myxidinm lieberkilhni Biitschli, in the Pike on 

 the American Continent and its Significance 373 



No. 6. DECEMBER, 1916. 

 GEE, WILSON. Effects of Acute Alcoholization on the Germ Cells 



of Fund ul us heteroclitus 379 



FASTEN, NATHAN. The Eye of the Parasitic Copepod, Salmincola 



edu'ardsii Olsson (Lernceopoda. edwardsii Olsson) 407 



CHILD, C. INI. Further Observations on Axial Susceptibility 



Gradients in Algcc 4 r 9 



WELLS, MORRIS M. Starvation and the Resistance of Fishes to 



Lack of Oxygen and to KCN 44 1 



SMALLWOOD, W. M. Twiity Months of Starvation in Amia calva 453 



