[On board H.M. Sloop Swan at Sandy Hook] Thursday October 3d
Thermom: morning 55 Dind and supd aboard the Merlin. Saw a Curious Diary, Log book, 1/2 minute glass Hermetically seald filled with a Compass Chrystal capd, with a small reflecting mirror for Planetary observations with several years work in Logarithms.
1. Thomas Moffat's Diary, LC.