This section is from the book "Popular Law Library Vol8 Partnership, Private Corporations, Public Corporations", by Albert H. Putney. Also available from Amazon: Popular Law-Dictionary.
Section 58. Where municipal corporations are situated upon a river or other stream, their jurisdiction, as a rule, extends to the center thereof, providing the charter or act of incorporation does not restrict such jurisdiction to the edge or margin of such river or stream.
It is held that where two towns are situated on opposite sides of a river and both are bounded by the river, the line between them is the center of the river measured from bank to bank.4
4 Boscawen vs. Canterbury, 23 N. H., 188; State vs. Canterbury, 28 N. H., 195; "An act extending the limits of a town over adjacent navigable waters does not thereby grant the land covered by the water to the town, but merely confers civil and criminal jurisdiction thereover." Palmer vs. Hicks, 6
Johns (N. Y.), 133. In Con-necticut, the jurisdiction of each town bordering on the Connecticut river, for the service of process and the enforcement of the laws, extends by ancient and invariable usage to the center of the river; Pratt vs. State, 5 Conn., 388. Hayden vs. Noyes, 5 Conn.,391.
 
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