4(32 



REPORT — 1900. 



of the body. Twenty-one nerve-signs have been observed and defined ; ^ 

 the cases presenting these signs are here grouped in classes under the 

 headings named according to the parts of the body in which they are seen. 



The tables given in the appendix may now be described. 



The total number of children with any class of nerve-signs is obtain- 

 able by adding the eight primary groups presenting that class, thus : 

 Among the children 7 years and under, adding the eight lines enumerating 

 signs in the face gives a total of 343 boys, 179 girls. Again, addition 

 of the three lines enumerating signs in face and cyo- movements gives a 

 total of 21 boys, 20 girls, with the two classes of nerve-signs. 



The numbers in each primary group of nerve-cases are given in the 

 last column of the table, and are distributed again as primary groups 

 main classes of defect observed associated with the 

 Thus : 



according to the 



Column headed B gives cases with nerve-signs only. 

 AB= Nerve-signs associated with development defect only. 

 BC=]Srerve-signs associated with delicacy only ; children pale or thin. 

 BD= Nerve-signs with mental dulness only. 



ABC = Nerve-cases with develoj^mental defect and delicate only, i.e. 

 not dull or backward. 



From these tables the compound groups am be formed by addition of 

 the primary groups composing them, and from these the correlations of 

 the classes of nerve-signs with the main classes of defect can be obtained 

 after the method explained in Dr. Warner's paper, published in the 

 'Journal of the Royal Statistical Society,' March 189G. 



Among the nerve-cases here reported on, the relative frequency of 

 nerve-signs in the face, the hand, and in eye-movements is shown to be 

 as follows : — 



Other researches were made, but when they did not appear to supply 

 useful information the results were not included in the tables. It was 

 thought that there might be a definite association between irregular 

 movements of the eyes and twitchings of the fingers ; the facts given 

 below do not support the premiss. Again, the association between 

 irregular eye-movements and overaction of the frontal muscles (frowning) 

 is not very marked, though more frequent than in the last case. 



' See Report on the Scientific Study of the Mental and Phijsiccd Conditions of 

 Children, hased on the examination of 100,000 children, p. 76. Published at the 

 Parkes Museum. 



