BIOLOGICAL BULLETIN 





 OF THE 



fiDavine Biological Uaboraton? 



WOODS HOLE, MASS. 





VOL. LI SEPTEMBER, 1926 No. 3 



CONTENTS 



FROBISHER, MARTIN, JR. Observations on the Relationship Between a 



Red Ton/la and a Mold I'athogeuic for 

 Drosophila melano'gaster 153 



YOUNG. DONNKLL B. Xuclear Regeneration in Styloiiychia my- 



tilus I'M 



MINNICH, DWIGIIT ELMER. The Chemical Sensitivity of the Tarsi of 



Certain Muse id Flics ifi6 



GREGORY, LOUISE H. Effects of Changes in Medium During Dif- 



ferent Periods in the Life History of 



Uroleptiis mobilis 179 



YOUNG, WILLIAM C., 



AND PLOUGH, HAROLD H. On the Sterili-atinn of Drosophila by High 



Temperature 189 



SKOWRON, STANISLAW. On the Luminescence of Microscolcx phos- 



phoreus Dug 100 



KATER, J. McA. Chromosomal Vesicles and the Structure of 



the Resting Nucleus in Phaseolus 209 



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Entered October 10, 1902. at Lancaster, Pa., as second-class matter under Act of Congress of July 16, 1894 



