VISUAL PERCEPTION OF THE CHICK 21 



10. Untersuchungen iiber den Lichtsinn und Farbensinn bei Tagvoglen. 



1907. Ihid., Bd. 57, S. 317-327. 



11. . Untersuchungen uber das Sehen und iiber die pupillenreaktion von 



1908. Tag und von Nachtvogeln. Ibid., Bd. 59, S. 143-167. 



12. Hunt, H. E. Observations on newly hatched chicks. American Journal 



1897. Psychology, vol. 9, pp. 125-137. 



13. Hunter, W. S. The question of form perception. Journal Animal Be- 



1913. havior, vol. 3, pp. 329-333. 



14. Johnson, H. M. Hunter on the question of form perception in animals. 



1914. Journal Animal Behavior, vol. 4, pp. 134-135. 



15. . Visual pattern-discrimination in the vertebrates — I. Problems and 



1914. methods. Journal Animal Behavior, vol. 4, pp. 319-339. 



16. . Visual pattern-discrimination in the vertebrates — II. Comparative 



1914. visual acuitv in the dog, the monkev, and the chick. Ibid., pp. 340- 



361. 



17. Katz, D. and Revesz, G. Ein Beitrag zur Kentnis des Lichtsinns der 



1907. Hiihner. Nachr. d. k. Ges. d. Wiss. zu Gottingen, Math.-physik. 



Kl. S. 406-409. (Cited by Lashley). 



18. . Experimentelle-psychologische Untersuchungen mit Hiihnern. Zeit. 



1909. /. Psych, u. Physiol, d. Sinnesorgane, Bd. 50, S. 93-116. 



19. Kline, L. W. Methods in animal psychology. American Journal Psychol- 



1899. ogy, vol. 10, pp. 265-277. 



20. Lashley, K. S. Visual discrimination of size and form in the rat. Journal 



1912. Animal Behavior, vol. 2. pp. 210 ff. 



21. . The color vision of birds. I. The spectrum of the domestic fowl. 



1916. /Z)zJ.,voL6,pp. 1-26. 



22. Mills, W. The nature and development of animal intelligence. New York 



1898. and London. Pp. XII -j- 307. 



23. Morgan, C. L. Habit and instinct. New York and London. Pp.351. 



1896. 



24. Pearl, R. Studies on the physiology of reproduction in the domestic fowl. 



1914. VII. Data regarding the brooding instinct in relation to egg produc- 

 tion. Journal Animal Behavior, vol. 4, pp 266-288. 

 24a. Porter, J. P. A preliminary study of the psychology of the English 



1904. sparrow. American Journal Psychology, vol. 15, pp. 313-346. 

 24b. . Further studv of the English sparrow and other birds. Ibid., vol. 



1906. 17, pp. 248-271'. 



25. Preyer, W. The senses and the will. Tr. New York. Pp. XXV -1- 346. 



1890. 



26. Romanes, G. J. Mental evolution in animals. New York. Pp. 411. 



1884. 



27. Shepard, J. F., AND Breed, F. S. Maturation and use in the development of 



1913. an instinct. Journal Animal Behavior, vol. 3, pp. 274-285. 



28. Spaulding, D. A. Instinct. With original observations on young animals. 



1873. Macmillan's Magazine, vol. 27, pp. 282-293. 



29. — . Ibid. Reprinted, Popular Science Monthly, vol. 61, pp. 126 ff. 



1902. 



