No. 3 — September, 1907 



A. J. GOLDFARB 



Factors in the Regeneration of a Compound Hydroid, Eudendrium 

 Ramosum. With two Figures 317 



C. M. Child 



Studies on Regulation. XI. Functional Regulation in the Intestine of 

 Cestoplana. With Twenty Text Figures 357 



S. J. Holmes 



The Behavior of Loxophyllum and its Relation to Regeneration. With 



Seven Figures 399 



Regeneration as Functional Adjustment. With One Figure 419 



George L. Streeter 



Some Factors in the Development of the Amphibian Ear Vesicle and 

 Further Experiments on Equilibration. With Six Figures 431 



Benj. C. Gruenberg 



Compensatory Motions and the Semicircular Canals. With Two Figures 447 



No. 4 — October, 1907 



Alice M. Boring 



A Study of the Spermatogenesis of Twenty-two Species of the Membra- 

 cidse, Jassidae, Cercopida; and Fulgorid^e. With Nine Plates 469 



William Morton Barrows 



The Reactions of the Pomace Fly, Drosophila Ampelophila Loew, to 

 Odorous Substances. With Five Figures 515 



Edgar Davidson Congdon 



The Effect of Temperature on the Migration of the Retinal Pigment in 

 Decapod Crustaceans. With Seven Figures 539 



S. Morgulis 



Observations and Experiments on Regeneration in Lumbriculus. With 

 One P igure 549 



Wm. E. Kellicott 



Correlation and Variation in Internal and External Characters in the 

 Common Toad (Bufo lentiginosus americanus, Le C.) With Six 

 Figures 575 



