HYNDMAN, S H <br/><br/>
A new type of visual aid for demonstration of comparisons or of rhythmic processes.  [electronic resource] 

 -  The Journal of physiology  Jun 1955 
 - 66P p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-3751 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiovisual Aids<br/>Physiology--instrumentation