Contents 
oD InsTINCT 
by William James 
& Tue Misuse oF THE CONCEPT OF INSTINCT 
by Luther L. Bernard 
G Tuk Cengsis oF THE CAT'S RESPONSE TO THE 
Rat 
by Zing Yang Kuo 
‘@ FURTHER STUDY ON THE BEHAVIOR OF THE 
CAT Towarps THE RAT 
. by Zing Yang Kuo 
/ SD Tr DeeeLomyENT oF BEHAVIOR IN VERTE- 
“~ BRATES EXPERIMENTALLY REMOVED FROM 
THE INFLUENCE OF EXTERNAL STIMULATION 
by Leonard Carmichael 
(e) ImprINTING 
by Konrad Z. Lorenz 
2» EXPERIMENTAL ANALYSIS OF BEHAVIOR 
Sy by Karl S: Lashle 
() INTRODUCTION OF Sy src BEHAVIOR IN MALE 
AND FEMALE Cuicks FOLLOWING INJECTION 
or Sex HorMONES 
by Gladwyn K. Noble and Arthur Zitrin 
(5) Tux Errects oF MEPROBAMATE ON IMPRINT- “ 
ING IN WATERFOWL 
by Eckhard H. Hess 
10. AN ATTEMPT AT SYNTHESIS 
by Nikolaas Tinbergen 
11. Tue INHERITANCE OF BEHAVIOUR: BEHAV- 
IOURAL DIFFERENCES IN FIFTEEN MoUusE 
STRAINS 
by William R. Thompson 
12. Generic DirFereNcEs IN Docs. A CASE OF 
MAGNIFICATION BY THRESHOLDS AND BY 
Hasir FORMATION 
by John P. Scott and Margaret S. Charles 
i]