Letter to Sir Archibald Geikie from Alexander MacMillan enclosing a letter from John Van Voorst (attached) refusing permission to use some wood cuts [in 'Memoir of Edward Forbes'], 1861, and requesting sight of Mrs. Yelverton's "things".

Letter to Sir Archibald Geikie from Alexander MacMillan inviting him to dinner and commenting on the Yelverton bigamy case.

Letter to Sir Archibald Geikie from Alexander MacMillan lamenting the slow sales of his book 'Memoirs of Edward Forbes' and suggesting this is due to the popularity of "the Gorilla book", [3rd edition Charles Robert Darwin's Origin of the Species].

Letter to Sir Archibald Geikie from J Bell telling him that he was making alternative arrangements for an illustration and had wired Alexander MacMillan to tell him this.

Letter to Sir Archibald Geikie from Jessie Aitken Wilson telling him that she has written to various people concerning the continued use of letters which were lent for the compilation of the 'Memoirs of Edward Forbes'. She informs him of the death of Captain Graves and encloses papers from Peter Colin Campbell (not attached).

Letter to Sir Archibald Geikie from Jessie Aitken Wilson enclosing a letter from Emily M Yelverton (not attached) which places obstacles in the way of the completion of 'Memoirs of Edward Forbes'. A discussion follows concerning the intellectual ownership of personal letters which are to be used as source material and possible methods of pacifying Emily M Yelverton.

Letter to Thomas Constable the printer, from Alexander MacMillan telling them that Sir Archibald Geikie's book ['Memoirs of Edward Forbes'] will be larger than originally indicated and not to continue until the size is known, and requesting a sample of a small type trial.

The Letters to Alexander MacMillan sub-series consists of: