His last letter 30 December 1786. Account of his [and William Younge's] time in Genoa, including stay with the Marquis Durazzo, acquaintance with Dr Batt, fears for Mr Marsh's health, "smooth" English consul. Account of precipitous journey to Pisa, which necessitated sea journey from Sestri to Lerici, the remainder of the journey on land. Intended itinerary for remainder of their time in Italy. "Abundantly" furnished with letters of introduction. Durazzo reports that Spalanzani is now in prison in Vienna under charge of embezzlement; all hope for his innocence, he does for the "honor of philosophers".

Last wrote to his father on 24 April [1787]. Account of his [and William Younge's] journey from Rome to Bologna, via Loreto; has never left any place "with half so much regret"; details of the route and country, including holy shrines of Loreto, and visit to Ancona. Account of their time in Bologna. Setting out for Venice shortly, and then Milan. He is "never better than when travelling or running about", and has not had a cold for a very long time.