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Webster 1913 Edition

Hamilton period

Ham′il-ton pe′ri-od

(hăm′ĭl-tŭn pē′rĭ-ŭd)

.

(Geol.)

A subdivision of the Devonian system of America; – so named from

Hamilton

, Madison Co., New York. It includes the Marcellus, Hamilton, and Genesee epochs or groups. See the Chart of

.