[Coffin, John Huntington Crane], 1815-1890. [from old catalog] · New York, D. Van Nostrand · leaf 19
urve connecting the extremities of the traverse. Thus suppose aship to sail from C to A by the traverseC B, B A, her departure will be by tra-verse sailing d e + m n ; whereas, if theship sail directly from C to A, the depart-ure will be o p, which is greater or lessthan d e + m n, according as it… … PARALLEL SAILING. 13 a distance exceeding an ordinary days run, the middle lati-tude suffices. (Bowel., p. 59, note.) It is easy, however, to separate a traverse into two ormore portions, and compute for each separately. PARALLEL SAILING. 9. The relations of the quantities (7, d, Z, and p are…
Navigation · Nautical astronomy
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![An illustration from L'optique divisée en trois livres : ou, l'On démontre d'une maniere aisée tout ce qui regarde 1. la propagation & les proprietez de la lumiere. 2. La vision. 3. La figure & la disposition des verres qui servent à la perfefectionner [sic] (1682)](https://img.insideoutlibrary.com/img/200/ia-loptiquedivise00ango-79-9.webp)
