BIOLOGICAL BULLETIN 



flDarine Biological Xaboratoq? 



WOODS HOLL, MASS. 



Vol. XIV 



MURBACH, L. 



Shelford, V. E. 



Keelogg, Vernon L. 

 Beckwith, Cora J. 



Reeves, Cora D. 



December, 1907 



No. 1 



CONTENTS 



Page 



On the Light Receptive Func- 

 tion of the Marginal Pap ill ce 

 of Gonionemus i 



Preliminary Note on the Distri- 

 bution of the 'Figer Beetles 

 (Cicindela ) and its Rela- 

 tion to Plant Succession 9 



Artificial Parthenogenesis in 



the Silkworm 15 



The Early Development of the 

 Lateral Line System of 



Amia calva 23 



The Breeding Habits of the 

 Rainbow Darter (Ftheo- 

 stoma cosruleum Storer) , a 

 Study in Sexual Selection ... 3c 



Published Monthly by the 

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Single Numbers, 75 Cents. Per Volume (6 numbers), S3. 00 



Entered October 10, 1902, at Lancaster, Pa., as second-class matter, 

 under Act of Congress of July 16, 1894. i 



