40 
CRUISE OF H.M.S. CHALLENGER. 
A. C. Bromley, and G. R. Bethel, were each specially 
qualified in surveying or magnetic work. Staff 
Commander Tizard, a surveyor of high reputation, 
was in charge (under Captain Nares) of the whole 
of the navigating and hydrographic duties, assisted 
by Sub-Lieutenants Havagal and Swire. The 
hygiene was in charge of Staff Surgeons Crosbie 
and Gr. Maclean. 
The engineering department, on which so much of 
the success of the Expedition depended, was under 
the direction of J. H. Ferguson, as chief, assisted 
by W. J. J. Spry, A. J. Allen, W. A. Howlett, and 
W. J. Abbott; and the machinery, on the return of 
the vessel after her long cruise, was as efficient as 
when she started. Paymaster R. R. Richard, Assist- 
ant Paymaster J. Hynes, with Sub-Lieutenants Lord 
George G. Campbell, A. F. Balfour, A. Channer, * 
and H. E. Harston, were the other officers. 
Professor Sir Charles Wyville Thomson, F.R.S. &c., 
had been selected as director of the civilian scientific 
staff, and (as has since been proved) none could 
have been found better qualified to fill the important 
position. With the practical experience he had 
already gained in the Porcupine and Lightning , he 
was enabled to utilise and work out all the subjects 
that came within his reach during our more ex- 
tended cruise. His assistants were H. N. Moseley, 
M.A., Dr. von Willemoes-Suhm, and J. Murray, 
who undertook the naturalist and botanical de- 
