Punctuation has been standardised.
Page 54, "it's" changed to "its" (that its presence)
Page 58, "Sergean" changed to "Sergeant" (Sergeant McQuade looked)
Illustration following Page 276, "GREEN-ROOM" changed to "GREEN ROOM" (TO THE GREEN ROOM)
The "s" in "street" following a proper noun is sometimes with an initial capital and sometimes with lower case.