Page [viii]—Succesful amended to Successful—... A Successful Experiment ...
Page [110]—pioner amended to pioneer—“Jim,” the pioneer of the pack, ...
The table of seventeen years’ athletics, originally on page 218, has been moved so that it is not in the middle of a paragraph. The original large table has been divided into smaller tables for better display on smaller devices.
The frontispiece illustration has been moved to follow the title page. Other illustrations have been moved where necessary so that they are not in the middle of a paragraph.
Alphabetic links have been added to the beginning of the Index, for the convenience of the reader.