BIOLOGICAL BULLETIN 



OF THE 



flDarine Biological Xaboraton? 



WOODS HOLL, MASS. 



Vol. XIV 



May, 1908 



No. 6 



CONTENTS 



Page 



Hegner, Robert W. An Intra-nuclear Mitotic Figure in the 



Primary Oocyte of a Copepod, Can- 

 thocamptus staphylinus Jur 321 



Patterson, J. Thos. A Microscope Stage Incubator 324 



Riddle, Oscar. The Genesis of Fault-bars in Feathers 



and the Cause of Alternation of Light 

 and Dark Fundamental Bars........... 328 



Johnson, Herbert P. Ly cast is quadraticeps, an Hermaphro- 

 dite Nereid with Gigantic Ova . , 371 



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tg&mmm 



