CONTENTS iii 



PAGES 



J. F. Shepard and F. S. Breed. Maturation and use in 



the development of an instinct 274-285 



Robert M. Yerkes. The heredity of savageness and wild- 



ness in rats 286-296 



Raymond Pearl. Note on the sex behavior of the Poitou 



Jacks 297-299 



Henry Foster Adarns. A set of blind rats which could 



not learn the maze 300-302 



Robert M. Yerkes. A society for animal psychology.... 303-304 



Number 5, September-October 



Wilson Gee. Modifiability in the behavior of the Cali- 

 fornia shore-anemone Cribrina xanthogrammica, Brandt 305-328 



Walter S. Hunter. The question of form perception 3 2 9~333 



Thorborg Marie Brundin. Light reactions of terrestrial 



amphipods 334~35 2 



Carl Hartman. The Habits of Eumenes belfragei, Cress. . 353-360 



K. S. Lashley. Reproduction of inarticulate sounds in 



the parrot 361-366 



S. J. Holmes and K. W. McGraw. Some experiments on 



the method of orientation to light 367-373 



William Morton Wheeler. A solitary wasp (Aphelanthops 

 Frigidus F. Smith) that provisions its nest with queen 

 ants 374-387 



C. A. Coburn. Singing mice 388 



Number 6, November-December 



S. J. Holmes. Literature for 1912 on the behavior of lower 



invertebrates 389-400 



C. H. Turner. Literature for 1912 on the behavior of 



spiders and insects other than ants 401-428 



William M. Mann. Literature for 1912 on the behavior 



of ants and Myrmecophiles 429-445 



John B. Watson and K. S. Lashley. Literature for 1912 



on the behavior of vertebrates 446-463 



Angell, James R. Loeb's The Mechanistic Conception 



of Life 464-468 



Boring, E. G. Morgan's Instinct and Experience 469-471 



Bentley, Madison. Schneider's Tierpsychologisches Prak- 



tikum in dialogform 472-473 



