obligatory for engineers also.

Within the service there has been repeated formation of distinct
branches or 'schools,' such as the further specialised specialist
gunnery and torpedo sections. It was not till 1860 that uniform
watch bills, quarter bills, and station bills were introduced, and
not till later that their general adoption was made compulsory. Up
to that time the internal organisation and discipline of a ship
depended on her own officers, it being supposed that capacity
to command a ship implied, at least, capacity to distribute and
train her crew. The result was a larger scope than is now thought
permissible for individual capability. However short-lived some
particular drill or exercise may be, however soon it is superseded
by another, as long as it lasts the strictest conformity to it is
rigorously enforced. Even the number of times that an exercise
has to be performed, difference in class of ship or in the nature
of the service on which she is employed notwithstanding, is
authoritatively laid down. Still more noteworthy, though much
less often spoken of than the change in _matériel_, has been
the progress of the navy towards centralisation. Naval duties
are now formulated at a desk on shore, and the mode of carrying
them out notified to the service in print. All this would have
been quite as astonishing to the contemporaries of Nelson or
of Exmouth and Codrington as the aspect of a battleship or of
a 12-inch breech-loading gun.

Let it be clearly understood that none of these things has been
mentioned with the intention of criticising them either favourably
or unfavourably. They have been cited in order that it may be
seen that the change in naval affairs is by no means one in