- 



Witntne compliments or 



k EDM, B, WILSON, 



COLUMBIA UNIVERSITY, NEW YO 



STUDIES ON CHROMOSOMES 



II. THE PAIRED MICROCHROMOSOMES, IDIOCHRO 

 MOSOMES AND HETEROTROPIC CHRO- 

 MOSOMES IN HEMIPTERA 



By 



\r> B. WILSON 



RETURN TO 



DIVISION OF GENETICS 



HILGARD HALL 



REPRINTED FROM 



THE JOURNAL OF EXPERIMENTAL ZOOLOGY 



Volume II 



No. 4 



BALTIMORE, MD., U. S. A. 



November, 1905. 



