Got my copy right in front of me...
seems to follow the NH from west to east, then back west via the Air Line and eventually ending with the Maybrook. Headings you may be interested in (heading w-e):
Rocky Neck/Niantic (CT), Rhode Island (2 pages), Massachusetts, Canton Jct, Old Colony, (then heading back west) Readville, Blackstone, Fitchburg, Eastern CT, then Air Line, Springfield Line, etc. So not a tremendous amount of RI/MA coverage, but some nevertheless.
Hope this helps.