J.— PSYCHOLOGY. 



181 



Graph B. 



lUuslraiing prognostic suggestiveness of early tests for the development 



of speech. 



Speech Development of Three Children. 

 27r 



I. Responsive ' cooing.' 



II. Practising new noises. 



III. Doing one or two things at command. 



IV. Onomatopoeic sounds. 

 V. Imitating word sounds. 



Key to Graph. 



VI. Negative spoken as refusal. 

 VII. Two words used together (possessive). 

 VIII. Two word sentence. 

 IX. Three word sentence. 

 X. Asking name of everything. 



