VISUAL PERCEPTION OF THE CHICK 



51 



TEST SHEET 1 



Title of investigation, Size: O 28H O 7+ 



Experimented on, 21 



Harvard Psychological Laboratory, February 28, 1912 



Record Sheet; 1; Series, 6 



TEST SHEET 2 



Title of investigation. Size: o 28-| o 7+ 



Experimented on, 16 



Harvard Psychological Laboratory, March 6, 1912 



Record Sheet 1; Series 16 



10-0-3.2 



8-2-28.2 



