APPENDIX 



1. Tables A to M give au analysis of 3,726 cases of ileaf imitcs from the American Asylum 

 and Illinois Institution. For this analysis I am indebted t« Mr. Franck Z. Maguire, of Wash- 

 ington, D. C; and I have personally verified his results. The relation of the tables to one another 

 will be understood from the following classification: 



Classijication of Tables A to K. 



C ,,,, , ,. X i 1 i 1 •, ,( Rccdvded to Iiave deaf-mute relatives (see 



Whose deatuess was stated to l)e coiigetiilal) Table £■) 

 , (see Table B). ^ Kecorded as sporadic cases (see Table F). 



Total nimiberof pupils of tbo I ,,T, -, r ^ * li i ( llcconli'd to have deaf-mute relatives (see 



iiiiai uiii.iuci u. 1 .11 ..c. . iiiu Whose deafness was stated to be iiob-coiwh- > -r.,!,!.. <m 



American Asylum aud nil- ; ./^i /„„„ ToIU^ r\ '. laiiliU»;. 



nois Institution (see Table ""' *'^'"' ^'^"'® *"•'• ( Recorded as sporadic cases (see Table H). 



A). 



„, i. T. 1 J- , . ,,( Recorded to have deaf-mnte relatives (see 



The cause of whose deatuess was jioj staled^ Table 11 



(see Table D). ^ Recorded as sporadic cases (see Table J). 



Table A gives the summation of Tables B, C, and D. 



Table B gives the summation of Tables E and F. 



Table C gives the summation of Tables G and H. 



Table D gives the summation of Tables I and J. 



In Table K the non-congenitally deaf pupils are classified according to period of birth and 

 according to period when deafness occurred. 



In Table L the non-congenitally deaf pupils of the American Asylum are classified according 

 to the period when hearing was lost, and according to the diseases that caused deafness. 



In Table M the non congenitally deaf pupils of the Illinois Institntion are classified according 

 to the period when hearing was lost, and according to the diseases that caused deafness. 



2. Tables N, O, V, <i relate to the Tenth Census of the United States (1880), and give the 

 results of an analysis of 22,472 cases of deaf-mutes from the census returns. (See communication 

 by the Eev. Fred. D. Wines upon the 1880 census of the deaf and dumb ; proceedings of the 10th 

 convention of American instructors of the deaf and dumb, Jacksonville, 111., August, 1882, pp. 

 122-128, published with the 21st biennial report of the Illinois Institution for the Deaf and Dumb.) 



Table N gives au analysis of 22,472 cases of deaf mutes living June 1, 1880, showing the 

 number who became deaf each year since the year 1770. 



Table O shows the number of these deaf-mutes who became deaf each year since 1873, sepa- 

 rating the congenital from the non-congenital cases. 



Table P classifies the 22,472 cases by periods of five years and reduces the number who became 

 deaf in each quinquennial period to a percentage of the whole on a basis of 10,000 cases in all. 



Table Q classifies the 22,472 cases by periods of five years and separates the congenital from 

 the non- congenital cases. 



3. Table R shows the number of deaf-mutes in the United States living June 1, 1880, arranged 

 according to race and sex and according to cause of deafness. The materials for this table have 



S. Mis. 110 29 225 



