No. 589] 



NOTES AND LITERATURE 



factor and any measurable characteristic of th 

 jected to its influence. Or in testing the assert 



results of actual measurements of criminals, 

 desirable to correlate between tlie kind of crime 



For the analysis of such data the correlation 

 great service. 



One Character Alternative, the other Measure 

 tative Scale. — Suppose now that one of the correl 

 of the kind discussed in the foregoing paragraj 

 as far as the qualitatively appreciable but not 

 acter is concerned, to two classes only, while the 

 remained as before. Such tables actually occur 

 great frequency. For example, one may wish 

 tween the form of a dimorphic crustacean and r 

 ments. Or it may be desirable to ascertain th 

 tween type (tubular or ligulate) of a composit 

 number of divisions in the corolla. Or one may 



in the seeds of a dimorphic plant species. Or a s 

 als may be classified by the social worker or p 



late between alcoholism (which is really a grad 

 although classified in the available records into 



