The first line indicates the original, the second how it should read:

p. 9:

• And sigh for sigh, when your're alone;
• And sigh for sigh, when you're alone;

p. 23:

• Whose opulent stream wild meandring flows,
• Whose opulent stream wild meandering flows,

p. 24:

• A month, when its pleasant a ramble to take.
• A month, when it's pleasant a ramble to take.

p. 26:

• These writers, when their names yon know,
• These writers, when their names you know,