A NORMAL PERIODIC REORGANIZATION PROCESS 

 WITHOUT CELL FUSION IN PARAMAECIUM 



LORANDE LOSS WOODRUFF AND RHODA ERDMANN 



Osborn Zoological Laboratory, Yale University 



SIXTY-SIX FIGURES (fOUR DOUBLE COLORED PLATES) 



ERRATA 



"A Quantitative Determination of the Orienting Reaction of the Blowfly Larva." 

 The Journal of Experimental Zoology, pages 213-280, volume 17, number 2. 



p. 224, line 8, following "the work," insert of these experiments. 



p. 253, line 21, for "swing" substitute swinging. 



p. 259, line 5, insert after "marked" {see fig 18). 



p. 267, line 12, substitute for "average" hypothetical. 



In figure 4, E-19 was an identification mark on the original record sheet, 

 which was reproduced by mistake and has no significance in connection with 

 the figure. The same is the case with E-29 in figure 5; 59 in figures 7 and 8; 

 E-19 in figure 9; 49 in figures 10 and 11; 59 in figures 12 and 13; 39 .in figure 

 14; E-39 in figure 16, a; 29 in figure 16, b; 49 in figure 16, c, d and e; 100% 

 39-lst in figure 16, f; all the numbers on figures 19 and 20. 



Explanation of plates j . . > . . . . .. . — 



I. INTRODUCTION 



The conception of the Protozoa as primitive animals has led 

 to innumerable studies on these forms — morphologists and phy- 

 siologists alike being animated with the idea that here many 

 of the riddles of life propounded by the so-called higher animals 

 would be presented in a simple form and so be more readily 

 solved. While this view of the Protozoa is undoubtedly true 



425 



THE JOURXAt. OF EXPERIMENTAL ZOOLOGY, VOL. 17, NO. 4 

 NOVEMBBH, 1914 



