Essay Towards a First Approximation to a Map of Cotidal Lines

This 1833 work describes the observations necessary to produce a map connecting points where the same tidal level occurs simultaneously.

Zusammenfassung
Cotidal lines are lines on a map which connect points at which the same tidal level occurs simultaneously. In this 1833 work, William Whewell proposes various observations to be undertaken to produce a cotidal map, with detailed descriptions of the factors to be taken into account in computing the results.

Inhalt

Essay towards a first approximation to a map of cotidal lines.