corrected to

123.

{√(602 - 302) = 51.96152
√(602 - 402) = 44.72136
}

Page 92: 156. 'chittim wood'

Genesis 6, 14 in the King James Bible and the Revised Standard Version state that the ark was made of gopher wood, covered with pitch, inside and out. The New English Bible gives cypress ribs, covered with reeds, and then pitched, inside and out. Concise Oxford English Dictionary agrees with the King James version (and RSV). Some other versions of the Bible may have given chittim wood - an American shrub:
Chittimwood - definition of chittimwood by The Free Dictionary Noun, 1. chittimwood - shrubby tree of the Pacific coast of the United States; yields cascara sagrada. bearberry, bearwood, cascara buckthorn, chittamwood, ...
... and Merry's Book of Puzzles was published in New York.

Pp. various: 'rod' is a pre-decimal measure of length. A rod, pole, or perch - 5½ yards, or 16½ feet. = 5.03 metres

Book 2.

Page 18: 'wh' correctred to 'who'.

68. Behead an article of apparel, and leave one who sometimes wears it.

Page 35: 'diamter' corrected to 'diameter'.