The return journey must be undertaken soon, despite the heat and danger lurking in the forest.
All pertained to the earlier tests Howie and Quinn had undertaken together while Betsy and I were still in New York.
Four years later (1520) the Portuguese seaman, Ferdinand Magellan, entered the estuary in his celebrated voyage round the world, undertaken in the service of the king of Spain (Charles I., better known as the emperor Charles V.).
Surveys were then undertaken in several directions.
The great voyage of Captain James Cook, in 1769-1770, was primarily undertaken for the purposes of observing the transit.