17 



Q 



EXPERIMENTAL PSYCHOLOGY. 



In Charge of Charles B. Bliss. 



1. An AUTOMATOGRAPH WITH REGISTRATION ATTACHMENTS. 



Exhibited by Mr. W. L. McWhood. 



2. An Instrument for Studying the Discrimination of 



Loudness of Sounds. Exhibited by Prof. J. McKeen 

 Cattell. 



3. An Instrument for the Measurement of the Time of 



Perception and Movement. Exhibited by Prof. J. 

 McKeen Cattell. 



4. Vernier Chronoscope. Exhibited by Prof. Edmund C. 



Sanford. 



5. An Audiometer. Designed by Dr. J. A. Gilbert and ex- 



hibited by Prof. Charles B. Bliss. 



6. An Adjustable Stereoscope Card. Exhibited by Prof. 



Charles B. Bliss. 



H 



GEOLOGY. 



In Charge of Arthur Hollick. 



1. Suite of European Clays and Kaolins and Objects 



Showing Clay when Burned. Collected and ex- 

 hibited by Dr. Heinrich Ries. 



2. Bauxites from Department of Herault in Southern 



France. Obtained and exhibited by Dr. Heinrich Ries. 



3. Copper Ores and Accompanying Rocks, from Otto 



Shaft, Eisleben, near Mansfield, Germany. Col- 

 lected and exhibited by Dr. Heinrich Ries. 



4. Specimens from the Salt Mines, Staasfurt, Germany. 



Collected and exhibited by Dr. Heinrich Ries. 



