|Description||Blackmore commenced this diary at the age of 20 while living in St Austell, Cornwall, from where his family originated. From January to June, the entries relate to his active social life in St Austell, visits to Bideford and elsewhere in Devon, to London and Oxford, attendance at Ascot races etc.|
From late May, the entries are interspersed with information about his efforts to obtain a position on a ship but on 17 June, according to the diary, he joined the sailing ship 'Token' on which he served as second mate under Captain William Cheyne on a voyage to Bombay, India. The remainder of the entries record in some detail his experiences on the voyage, the daily routines of the ship, his relationships and difficulties with the other officers and crew. On arrival at Bombay in November 1845, the cargo of coal was discharged and cotton taken on board for Cochin (also India) and the ship sailed again in January 1846. The entries in the diary end with the ship's arrival at St Helena in the South Atlantic Ocean and a description of the island.