I acknowledge, with thanks, the permission of Mr. John Murray to
reprint the extracts from _Queen Victoria’s Letters_ on pp. 26, 68, 84;
and from _The Croker Papers_ on p. 26; also the permission of Messrs.
Longmans, Green and Co. to reprint the extracts from _The Greville
Memoirs_ on pp. 29, 68, 85; and those from _The Life of Lord John
Russell_ on pp. 99, 118.