As a supplement to the previous chapter it may be stated here, in answer to many inquiries, that my own measurements, etc., at the present time are as set forth below. The first edition of the book was written rather hurriedly, and consequently one or two trifling inaccuracies crept in. These are now corrected:—

My strength, it may be added, is steadily increasing. If some one had told me two years ago that I should be able to perform the feats of strength that I now accomplish I would not have believed it. I feel sure, moreover, that in the natural course of things, my strength will continue to increase. With careful training the bodily strength ought to increase steadily until the forty-fifth year is reached.

The above appeared in the first edition. Pupils will be glad to hear that my belief has been fully justified, and that even since the book was first published, some eighteen months ago, there has been a very material increase in my strength.