Abstract
My Lord, The favourable reception, which my account of last year's eruption of Mount Vesuvius met with from your Lordship, the approbation which the Royal Society was pleased to shew, by having ordered the same to be printed in their Philosophical Transactions, and your Lordship's commands in your letter of the 3d instant, encourage me to trouble you with a plain narrative of what came immediately under my observation during the late violent eruption, which began October 19, 1767, and it reckoned to be the 27th since that, which in the time of Titus, destroyed Herculaneum and Pompeii.