I am trying to establish the spelling of a certain phrase. I am reading a manuscript where the author has written, when speaking of researching something, "pouring through library books..." I am not sure but I feel (not having thought about it ever) that the author would be "pawing through..." After all, I believe the expression alludes to turning pages etc.
Your insights will be appreciated.
The verb you're looking for is "pore", meaning to study intensely or to ponder. It's usually used with "over": "poring over old manuscripts". But with a pile of books, "through" might be a bit more appropriate.
If the original says "pour", that is a spelling error.