An introduction to astronomy : designed as a text book for the students of Yale College (1846)
Olmsted, Denison, 1791-1859, Yale College (1718-1887) · New York : Collins, Brother & Co. · leaf 196
The direction also of the de-rivative tide, may be totally different from that of the primitive. Thus, (Fig. 59,) if the great tide-wave, moving from east to west,be represented by the lines 1, 2,3, 4, the derivative tide which ispropagated up a river or bay,will be represented by the cotidallines… … 289. On account of the retarding influence of shoals, and anuneven, indented coast, the tide-wave travels more slowly alongthe shores of an island than in the neighboring sea, assuming con-vex figures at a little distance from the island and on oppositesides of it. These convex lines sometimes meet…
Astronomy
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