CUSTOM OF THE CONSTITUTION. 43

office of Governor-General and the Instructions issued to the
Governor-General were revised in 1878. By these instruments
 he is authorized to exercise several important executive
 and prerogative powers vested in Her Majesty, as for
instance the summoning, proroguing and dissolving parliament,
 the pardoning of criminals and the appointment of
judges, ministers and other officers.
It is not usual on the appointment of the Lieutenant-Governor
 of a province to issue instructions to him, but such
a course has been occasionally adopted.

. See Appendix.