WYVILLE THOMSON 47 



of new knowledge which was afterwards elaborated and 

 displayed in the finished series of " Challenger Reports," 

 and has now found its way into textbooks and been incor- 

 porated in the fabric of established science. 



The long voyage, a considerable part of it spent in the 

 tropics, cannot but have affected to some extent the health 

 of men not trained to a life at sea. One of the naturaUsts, 

 Dr. R. von Willemoes-Suhm, died during the voyage ; 

 Sir Wyville Thomson's health broke down soon after his 

 return, and he died early in 1882 ; Professor Moseley died 

 comparatively young in 1891, after some years of ill-health. 

 Sir John Murray, on the other hand, was still in vigorous 

 health at the age of over seventy-two, when he was killed 

 in a motor accident in 1914. Dr. Buchanan, the chemist 

 to the expedition, is now the sole survivor of the civilian 

 scientific staff. The members of that staff were all briUiant 

 men, who aU produced most distinguished work. It had 

 been said of Moseley, when a young man, that you had only 

 to put him down on a hiUside with a piece of string and an 

 old nail, and in an hour or two he would have discovered 

 some natural object of surpassing interest. During the 

 voyage, in addition to working at the groups of animals, 

 such as Corals, entrusted to his care, he made very notable 

 collections in Botany and Anthropology from the remote 

 and little-known islands that were visited. He also investi- 

 gated some of the more remarkable of the organisms encoun- 

 tered either on sea or land, such as a pelagic Nemertean 

 and some deep-sea Ascidians. While the " Challenger " was 

 at Cape Town he took advantage of the opportunity to 

 search for Peripatus, at Wynberg, on the slopes of Table 

 Mountain, and on his first-found living specimen succeeded 

 in demonstrating its essentially Tracheate nature. 



In his book. Notes of a Naturalist on the " Challenger,'" 

 Professor Moseley gives us an interesting account of the deep- 

 sea dredging and sounding, and of the length of time required 

 for these operations on board the " Challenger." At a depth 



