Diary of Vesuvius observations by Antonio Piaggio Written observations with pencil and ink sketches of volcanic activity at Vesuvius, in Italy, kept by Fr. Piaggio, on behalf of Sir William Hamilton. The work commences: 'continuazione delle osservazioni sopra il Vesuvio reltive al Diario interrotto' [continuation of the observations of Vesuvius related to the discontinued diary]. Following some introductory remarks, the observations recommence from 4 April 1795. The volume concludes with several papers and loosely inserted items including a print of the volcano and a letter: Antonio Piaggio, Resina, 20 August 1795, to Sir William Hamilton. This is endorsed verso: 'Padre Antonio's lost Letter with Diary to the 20 Augt.1795'. The spine label is lettered: 'VESUVIO VOL.7. DA 4 APR AL 20 AGOST 1795'. April-August 1795