GRAPHIC xMETHOD OF RECORDING MAZE-REACTIONS 



51 



When the idea of using a graphic method of recording maze- 

 reactions occurred to us, it was immediately suggested, through 

 correspondence, to Professors J. B. Watson and Madison Bentley. 

 The former, feeling the immediate need of such an improvement 

 in the technique of maze experiments, promptly devised and con- 



// 



H 



D 



IL 



Mi 



IV 



IL 



Figure 1 



Diagrams of four types of apparatus for obtaining graphic records of maze-reactions. 

 I. Apparatus for the direct method: Z, maze; L, lens; D, drawing surface; H, 

 hood. II. Apparatus for simple reflection method: M, mirror. III. Apparatus 

 for double reflection method of Watson: M and M 2 , mirrors. IV. Apparatus for 

 double reflection method of Kellogg. 



