Scope and Content: As part of their function to care for and supervise the harbors and waterways of Massachusetts, the Division of Waterways of the Dept. of Public Works and predecessors in this function, the Division of Waterways and Public Lands of the Dept. of Public Works, 1919-1927, and the Dept. of Public Works as a whole, 1927-1938) employed engineers to make surveys of harbors and rivers.  Time and tide field notebboks were created by these surveyors to record changes in tides at established gauges.
Arrangement: Arranged chronologically, thereunder by location of gauge
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