Book 1.

Page 86: 'stich' corrected to 'stitch'.

"Stitch! stitch! stitch!"

Page 87: '10,000' corrected to '10,100'.

"Arithmetic!: 202 x 50 = 10,100"

Page 91:

123.

{[sqrt]60 - 30^2 = 51.96152} {[sqrt]60 - 40^2 = 44.72136} 96.68288. _Ans._

corrected to

123.

{[sqrt](60^2 - 30^2) = 51.96152} {[sqrt](60^2 - 40^2) = 44.72136} 96.68288. _Ans._]

Page 91: 154.

154. XI divided VI/^I [top half of the X, top half of the I --> VI] gives six. IX divided in the same way, gives four. [top half of the I, top half of the V --> IV]

Pp. various: 'rod' is a pre-decimal measure of length. A rod, pole, or perch - 5-1/2 yards, or 16-1/2 feet. = 5.03 metres