INDEX 



IX 



in invertebrates, 400, 414; 

 "literature on, 424. 



Wadsworth, J. T. Life history of 

 gall-fly, 444. 

 * Walton, A. C. Delayed reaction in 

 dog, 250. 

 Wardle, R. A. Life history of Zen- 

 tilla. 444. 

 '""Wasp, behavior of, 240. 



Waterson, J. Bird lice, 4:50. 444. 

 *Water-strider, habits of, 397. 

 Watson, J. B. Circular maze with 

 camera lucida, 45!>. 4til ; 

 " Behavior." 402. 

 "Webster, R. L. Life history of Cono- 



trachelus, 434, 445. 

 Weiss, H. B. Pain in insects, 416, 

 445; 

 eggs of Paratenodera, 427, 445. 

 Welch. P. S. Life history of Hydro- 



myza, 420, 445. 

 Wevland, If. Chemotaxis oi Colpi- 

 ' (limn. 413, 414. 



*White, <L M. Behavior of trout. 44. 

 Williams, I'". X. Habits of wasps. 427, 



445. 

 Wolcott, (J. X. Life history of wasp. 



434, 445. 

 Wolff, P. Temperature reactions of 



butterflies. 440, 445. 

 "Worm, grasping organ in, 375. 

 Wradatsch, G. Hibernation of Kaefer, 



445. 



*\t erkes, P. M. Color vision of ring- 

 1 dove, 25 ; 

 *behavior of crow, 75; 

 "liehavior of pig, 185; 

 *role of the experimenter, 258; 

 "instinct in monkey, 403; 

 Franklin Field-Station, 450, 461; 

 the graphic maze, 458, 461. 



Zagorowski, I'. Thermotaxis in Para- 

 mecium. 413, 414. 

 Zetck. J. Fly and disease, 434, 445. 



