George Brodrick - The Political History of England – Vol XI

This is the date commonly given. The Annual Register , li. (1809), 239, gives the 22nd, while Perceval refers to the result of the duel in a letter dated the 20th (Colchester, Diary , ii., 209). It is clear, however, that Canning did not receive Castlereagh's challenge till the morning of the 20th (see his letter in Annual Register , loc. cit. , 505, also his detailed statement to Camden, ibid. , 525), and therefore the duel cannot have taken place till the 21st. Lord Folkestone in a letter dated the 21st refers to the duel as having been fought at "7 o'clock this morning" ( Creevey Papers , i., 96).

For the whole crisis see Walpole, Life of Perceval , ii., 157-96, and for Sheridan's share in the transactions, Moore, Life of Sheridan , ii., 382-409.

Napier, Peninsular War (3rd edition), i., 123.

For Moore's campaign see Napier, Peninsular War , i., pp. xxi. – xxv., lvii. – lxxvi., 330-44, 431-542, and Oman, Peninsular War , i., 486-602; and compare Moore's Diary , edited by Maurice, ii., 272-398. Sir F. Maurice has not completely answered Professor Oman's criticisms.

Wellington, Dispatches , iv., 261-63 (March 7, 1809).

For the exact figures see Oman, Peninsular War , ii., 645-48.

Wellington, Dispatches , iv., 536 (July 29, 1809).

For Masséna's lines of march see T. J. Andrews in English Historical Review , xvi. (1901), 474-92.

The battle is picturesquely described by Napier, Peninsular War , iii., 536-66. See also ibid. , pp. xxxv. – li.

Wellington, Supplementary Dispatches , vii., 318-19.

Napier, Peninsular War (first edition), v., 513.

Wellington, Dispatches , x., 473 (June 29, 1813).

Ibid. , x., 519 (July 9, 1813).