p. 392, Solution 4, in the third measure, double the soprano and alto on "B".

p. 393, Solution/Problem 6, in the second measure, 4 (not 6) should be the raised note.

p. 399, Solution/Problem 8, the last tenor note should be a "C".

p. 400, Solution/Problem 11, in the fourth chord, 6 (not 4) should be the raised note.

p. 403, shift all measure numbers one measure to the right. Remove the natural in measure 9 (second bar, third system).