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The left-hand quarter of the page shows a continuation of the view to the south-east from the vicinity of the Upperton Monument folly in Petworth Park on folio 20 verso opposite (D18742).1 Across the middle of the rest of the present page is a sketchy view of Petworth House from rather nearer in the same direction, with the lake in the foreground, reprising the composition of Turner’s 1810 painting Petworth, Sussex, the Seat of the Earl of Egremont: Dewy Morning (Tate T03880, displayed at Petworth House).2
The sequence of sketches between folio 17 verso (D18736) and (apparently) folio 26 recto (D18753), and possibly 26 verso (D18754), comprises Sussex subjects in the vicinity of Petworth, those as far as folio 22 verso (D18746) showing the park west of the house. For a note on Lord Egremont, Petworth, and Turner’s work there, see the sketchbook’s Introduction. At the bottom right appears to be a continuation to the right of the main view, or another aspect of the park.
A tear halfway down the outer edge has been repaired. The leaf has been removed from the book at some stage and laid onto a shallow modern stub.