APPENDIX. 



MY schedule of printed questions, together with the 

 ample spaces left for replies, filled, I am half ashamed 

 to acknowledge, seven huge quarto pages. It would be 

 a cumbrous addition to a publication like the present 

 to reproduce these in the same form in which they 

 were framed ; and as the following extracts (with trifling 

 variations rendered necessary by the change of form) 

 cover precisely the same ground, and are sufficient for 

 explanation, I abstain from doing so. 1 



A circular letter, in which I explained briefly the 

 object of the inquiry, accompanied the schedule, and I 



1 I also omit the description of a notation I proposed to replace in- 

 definite words such as " large," "considerable," because I have made 

 no use of it in this volume. It is a modification of the class notation 

 used by me in my " Hereditary Genius," and was alluded to and illus- 

 trated in my lecture before the Royal Institution, 1874. I have by 

 no means abandoned its advocacy, but have learnt the necessity of 

 explaining and exemplifying it in considerable detail before its 

 merits and convenience are likely to become as generally recognised 

 as I believe they deserve to be. 



