Manuscript workbook on natural philosophy with numerous finely executed manuscript illustrations throughout. An unusually attractive manuscript done by a careful hand with no lack of artistic talent. The front is signed C.(?) H. Thacher – likely the Thacher family of Massachusetts. 4to album, Whatman paper with watermarks dated 1794. Approximately 140 pages. Bound in period half calf.

Binding chipped and scuffed, rear board detached, contents generally clean with some occasional light foxing or similar minor blemishes.