Behavior Monographs 



Volume 1 



1. The development' of certain instincts and habits in chicks. By 

 Frederick S. Breed. Pp. iv+78. $1.00. 



2. Methods of studying vision in animals. By Robert M. Yerkes and 

 John B. Watson. Pp. iv + 90. $1.25. 



3. An experimental study on the death-feigning of Belostoma (-zaitha 

 aucct.) tlumineum say and nepa apiculata uhler. By Henry H. P. Severin 

 and Harry C. Severin. Pp. iii+47. $.65. 



4. The Biology of Physa. By Jean Dawson. Pp. iii + 120. $1.50. 



5. The Function of the Vibrissae in the Behavior of the White Rat. By 

 Stella Bumham Vincent. Pp. iv+85. $1.15. 



Volume 2 



6. The Delayed Reaction in Animals and Children. By Walter S. 

 Hunter. Pp. v+86. $1.15. 



7. The Canada Porcupine : A Study of the Learning Process. By Leroy 

 Walter Sackett. Pp. iii+84. $1.15. 



8. Audition and Habit Formation in the Dog. By Harry Miles Johnson. 

 Pp. iv + 78. $1.00. 



9. The distribution of Effort in Learning. By John L. Ulrich. In 

 preparation. 



