iv CONTENTS. 



SHUMWAY, WALDO. A Process of Temporary Chain Formation 



by Fronionia 258 



HARMAN, MARY T. Spermatogenesis in Paratteiix 262 



Xo. 5. NOVEMBER, 1915. 



TURNER, C. H. Notes on the Behavior of the Ant-lion with 



Emphasis on the Feeding Activities and Letisimulation 277 



HARVEY, E. NEWTON. The Effect of Certain Organic and In- 

 organic Substances upon. Light Production by Luminous 

 Bacteria 308 



BORING, A. M., AND POOLER, R. H. Further Notes on the Chromo- 

 somes of the Cercopidce 312 



BARROWS, WILLIAM M. The Reaction of an Orb-weaving Spider, 



Epeira sclopetaria Clerck, to Rhythmic Vibrations of its Web. 316 



No. 6. DECEMBER, 1915. 

 PATTERSON, J. T. Observations on the Development of Copidosoma 



gelechice 333 



ANDREWS, E. A. Distribution of Folliculina in 1914 373 



KRECKER, F. H. Phenomena of Orientation Exhibited by 



Ephemeridce 381 



PAXMAN, DALTON G. Cell Multiplication in the Sub-cuticula of 



Dilepis scolacina 389 



