author's abstract of this paper issued 

 by the bibliographic service, march 20 



BRISTLE INHERITANCE IN DROSOPHILAi 



III. CORRELATION 



EDWIN CARLETON MacDOWELL 



Station for Experimental Evolution, Cold Spring Harbor, Long Island 



EIGHT FIGURES 



CONTENTS 



Introduction 419 



Previous results 420 



Correlation 421 



Methods 423 



Results 432 



Conclusions 440 



New data; selection suspended 442 



Experiment 443 



Results 445 



Conclusions 448 



Males vs. females 448 



Discussion of literature 451 



Summary 458 



Bibliography 459 



INTRODUCTION 



This paper is a coordinate part of the second paper in this 

 series (MacDowell, '17 b) and would have followed it immedi- 

 ately had not the war intervened. The preceding report gave 

 the details of the experiments and presented results in the form 

 of means, standard deviations, and frequency distributions; this 

 paper analyzes the same primary data by means of correlation 

 tables. New data are presented, involving over 31,000 bristle 

 counts, from four additional generations raised without selection 

 as a final test of the germinal constitution of the selected race. 



1 Acknowledgment should be made of the cooperation of J. Gowen, J. Krafka 

 and E. M. Vicari in the calculation of the constants in this paper, and espe- 

 cially of Miss Vicari's part in constructing the figures. 



419 



