Columbia subject headings:
Canals--Massachusetts--Design and construction--Costs.
Canals--New Hampshire--Design and construction--Costs.
Harvard subject headings:
Amoskeag Canal Lottery.
Blodget Canal (N.H.)
Canals--Massachusetts
Canals--New Hampshire.
Lotteries--Massachusetts.
Lotteries--New Hampshire.
Middlesex Canal (Mass.)
Princeton subject headings:
Canals--Massachusetts--Design and construction--Costs.
Canals--New Hampshire--Design and construction--Costs.