The serpentine motion of flame, with mechanical sketches
A note that flame moves in air as air moves in water; a red-chalk sheet of frames and linkages
A brief note observes that flame moves through the air just as air moves through water, in a writhing, serpentine motion that is greatest where the flame is large, and that flames joined at their base divide along curved lines. Most of the double sheet, however, is taken up with red-chalk sketches of frames, bars and pinned linkages, including scissor-like crossings and a trestle-like structure, which the source records only as 'Figures' and does not transcribe. Faint further jottings accompany the drawings.
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Flame moves like air in water
Flame moves within the air just as air moves within water, that is, with a writhing serpentine motion, and most of all where the flame is large. The divisions of flames joined at their bases are curvilinear.
Frames and pinned linkages in red chalk
The sheet is covered with red-chalk mechanical sketches: a trestle-like frame, leaning bars, rods jointed with pins and rollers, and several scissor-like crossings. The source labels them only as 'Figures' and gives no transcription of their working.