Sidney James Mark Low,
Dictionary of National Biography…
(1912)
“ If he cannot be cleared of all responsibility for some of the misfortunes incurred in the expedition, his gifts of character were never more conspicuously displayed than in the courage and tenacity by which he redeemed the failures, saved his broken columns from utter ruin, and rendered the enterprise fruitful, and, in its ultimate consequences, epoch-making. Only a man of his iron resolution and invincible resource could have carried through the awful marches and counter-marches in the tropical forests and along the banks of the Aruwdmi. ”
