Challenger Expedition, a scientific expedition sent out by the British Government in the Challenger in 1872 in the interest of science, and under the management of scientific experts, to various stations over the globe, to explore the ocean, and ascertain all manner of facts regarding it open to observation, an expedition which concluded its operations in 1876, of which as many as 50 volumes of reports have been compiled.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Chalier * Challis, James