“His work was both of a military and of a scientific nature, often combining these two aspects in his work on hydrography and cartography.”

“Samples were grouped in several distinct clusters that were generally consistent with the hydrography of the area.”

“All input hypsography and hydrography data were appended and trimmed to cover the areas for each processing block.”

“He was hydrographer to the Admiralty, and accompanied Ross on his first voyage of discovery.”

“I haven't been able to get in touch with the hydrographer for twenty-four hours.”

“At the same time, Gressier, the hydrographer, collected all the materials requisite for preparing a chart of the Fiji Islands.”