Hydrographical surveying : a description of means and methods employed in constructing marine charts (1920)
Wharton, W. J. L. (William James Lloyd), 1843-1905, Field, Arthur Mostyn, 1855- · London : J. Murray · leaf 453
stern; in a screw vessel it wouldprobably be desirable to take the counterpoise sufficiently farforward to avoid risk of fouhng the propeller. It is claimed that the rapidity with which soundings can beobtained by this method renders profitable the work of soundingfrom the ship on large scale work… … CHAP. XX.] ROLLER SOUNDING 425 ROLLER SOUNDING. By captain B. T. SOMERVILLE, R.N., H.M. .Surveying Ship ■ Research. This method of obtaining .soundings, by which the depth iscontinuously recorded, has been found to be a vahiable one solong as its natural limitations are not exceeded. These include:…
Hydrographic surveying · Nautical charts
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