According to the Indian naval hydrographic charts, the mainland coastline consists of the following: 43% sandy beaches; 11% rocky shores, including cliffs; and 46% mudflats or marshy shores.

He was known above all for his scientific endeavours, notably in the rectification of naval charts of America's western coast and the coasts of the Mediterranean.

These naval charts were printed on specially treated oil cloth to allow them to be utilized under conditions that were far from ideal.

When the British reorganized the official admiralty naval charts in 1847, Henry Kellett systematically removed many of Wilkes's names.

Rosny House was later known as Montagu House, and was clearly marked on naval charts from 1863.

Navigation will be done the old-fashioned way, by the sun and stars, along with naval charts, compasses and a sextant.

Sarah Ann Island northwest of Easter Island was another island also removed from naval charts when a search in 1932 failed to find it.

This work did, however, gain Rosily the rank of contre-amiral and (on 22 August 1795) that of director and inspector general of the naval charts and plans department.

In 1804, an article on his observations of the Moon was published and in 1806 he published naval charts of several harbors, including Salem.

No reliable naval charts of the area became available until 1776.