. Homing and related activities of birds . ctorsused in return, but we are far from being without hope that future studiesmay yield results which will enable us to solve the riddle which has been pro-pounded to scientific men of all ages, but as yet never satisfactorily answered. The final paper by Dr. Lashley, on the acquisition of skill in archery,has of course no connection with the work on homing. Its inclusion in thepresent volimie is made desirable by the fact that the work was begun atTortugas under the same arrangements that were made for the other investi-gations. Both Dr. Lashley and
. Homing and related activities of birds . ctorsused in return, but we are far from being without hope that future studiesmay yield results which will enable us to solve the riddle which has been pro-pounded to scientific men of all ages, but as yet never satisfactorily answered. The final paper by Dr. Lashley, on the acquisition of skill in archery,has of course no connection with the work on homing. Its inclusion in thepresent volimie is made desirable by the fact that the work was begun atTortugas under the same arrangements that were made for the other investi-gations. Both Dr. Lashley and I wish to express our thanks to Dr. A. G. Mayer,Director of the Marine Biological Laboratory, for his generous assistance mthese investigations. John B. Watson. The Johns Hopkins L^niveesity, February 1915. AN HISTORICAL AND EXPERIMENTAL STUDY OF HOMING. By John B. Watson, Professor of Experimental and Comparative Psychology at the Johns Hopkins University, AND K. S. Lashlet,Johnston Scholar in Psychology at the Johns Hopkins ^s^. l*^ AN HISTOEICAL AND EXPERIMENTAL STUDY OF HOMING. INTRODUCTION. In 1907, while the senior author was making a study of the nesting behaviorof the noddy and sooty terns at Biid Key, Tortugas, Florida,* the fact wasobserved that these birds possess a well-developed homing sense. Onlya few experiments were made at that time (see p. 46), but the results were sopromising that Dr. Alfred G. Mayer, Director of the Marine Biological Stationof the Carnegie Institution of Washington, made special arrangements forthe continuation of the work in 1910, 1912, and 1913. Since the homing sea-son is only 5 to 6 weeks in length (being limited to the laying and broodingperiods), the present summary of the three years work is far from being satis-factory. Notwithstanding our failure to work out completely the problems ofhoming in the terns, we feel that we have made so many improvements in ourtechnique—in the matter of caring for the birds on trips, loc
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