The History of the Restoration by Lamartine is the most interesting work
I have read on the subject; but he is not regarded as a high authority.
Talleyrand's Memoirs, Mémoires de Chateaubriand; Lacretelle, Capefigue,
Alison; Biographie Universelle, Mémoires de Louis XVIII., Fyffe,
Mackenzie's History of the Nineteenth Century,--all are interesting, and
worthy of perusal.