Logbook of the LEONIDAS, kept by Robert Thomas, of Caernavon.
Logbook of the LEONIDAS, from Amwlych to Van Dieman's Land (Tasmania), via St Johns Newfoundland and San Salvador, 25 June - 31 October 1825. The journal is illustrated, with several sketches showing the daily sail settings and also includes navigational workings, copied charts and exercises. The volume was kept by Robert Thomas, of Caernavon.