“I’m thinkin,’ as sound before if ye” attach the apostrophe to thinkin to form thinkin’.

“she heard the click-clack of Mildred’s shoe grow fainter” to shoes.

[Chapter XXXVIII]

“that nervous tremor which is so pleasant to see” to unpleasant.

[Chapter XL]

“and there’s two stout lad’s wi’ him” to lads.

[Chapter XLII]

“I am tired, I but won’t mind the wine” to but I.

[Chapter XLVIII]

“Dead men, ’tis an old sayin,’ is kin” attach second appostrophe to sayin to form sayin’.