Page 64, ... the inclination of the board being diminished with the progress of the pupil ... possibly an error for ... being increased with ... or similar (as described in the next paragraph). Page 64, 65, Plate XVIII: there are no reference letters in the illustration. Changes made: Footnotes and most illustrations have been moved out of text paragraphs. Some minor inconsistencies and obvious typographical and punctuation errors have been corrected silently. Ditto characters in some tables and lists have been changed to the dittoed text. Page 52: ... as in Plate XVII. fig. 1 ... changed to ... as in Plate XII. fig. 1 .... Page 58: (fig. 1, Plate XX.) changed to (fig. 1, Plate XV.) Page 60: Fig. 1, Plate XVII. changed to Fig. 1, Plate XVI. Page 82: Heading AQUATIC EXERCISES inserted. Page 106: coxwain changed to coxswain. Page 112 footnote [23]: shouds changed to shrouds. Page 132: manege changed to manège as elsewhere. Page 189: DESCRIPTION OF PLATE XLII changed to DESCRIPTION OF PLATE XLIII. Page 208: (Plate XLIII. fig. 4.) changed to (Plate XLIV. fig. 4.)