Mass of water and sand, in red chalk
A soft sanguigna study of a current carrying and depositing sediment.
In red chalk Leonardo draws a swirling, rounded mass of water carrying sand, one of the notebook's studies of how a current shapes and deposits sediment. Faint mirror-script from the facing leaves shows through the thin paper. No text on this side was transcribed.
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Swirling mass of water and sand
A loose red-chalk drawing shows water and sand churning together in a soft, vortical mass at the centre of the sheet. It belongs with the manuscript's studies of river currents and the sediment they carry.