Opening of Afghan War'. Demi-official correspondence with Lord Lytton, Lord Cranbrook, Sir G.P. Colley, Sir Richard Temple and Sir Neville Bowles Chamberlain
Sir F. Roberts'. Demi-official correspondence between Lyall and Sir Frederick Sleigh Roberts (later Lord Roberts), Commander of the Kabul Field Force [some printed]
Afghan War - Sandeman, Sir R. Correspondence with in 1879-80 re Quetta and Kandahar affairs'. Printed and manuscript demi-official correspondence with Lyall
Curzon - Kitchener dispute, 1905'. Copies of letters from Lyall to Lord Reay and to the editor of the Times; printed official papers on the administration of the army in India