CONTENTS. 



1 . - INTRODUCTION : .Page 1 



2. - PROBLEM " 2 



3. - APPARATUS " 2 



a- LATCH-BOX 3 



b- MAZE 



o- INCLINED PLANE BOX " 4 



4. - METHODS OP EXPERIMBNTAT ION " 5 



5. - LATCH BOX 



a- RESULTS " 14 



b- CURVES " I? 



. - iZE • " 25 



a- RESULTS " 29 



b- Curves " 30 



7.- THREE PROBLEMS ABREAST " 33 



a- RESULTS . ; " 34 



b- CURVES " 37 



8 . - ORGANIZAT ION OF MOVEMENTS "43 



9 . - REUfSlITION " 48 



10. - CONDITIONS INFLUENCING LEARNING "51 



11.- DISCUSSIONS " 54 



