621

On the preparation and use of colours.

A FINE YELLOW.

Dissolve realgar with one part of orpiment, with aqua fortis.

WHITE.

Put the white into an earthen pot, and lay it no thicker than a string, and let it stand in the sun undisturbed for 2 days; and in the morning when the sun has dried off the night dews.

Taken from The Notebooks of Leonardo da Vinci edited by Jean Paul Richter, 1880.

VII * X
Notebooks of Leonoardo da Vinci
VIII: Botany for Painters and Elements of Landscape Painting.
. . .
Of painting battle pieces.
601,
602,
603
Of depicting night-scenes.
604
Of depicting a tempest.
605,
606
Of representing the deluge.
607,
608,
609
Of depicting natural phenomena.
610,
611
Of chalk and paper.
612,
613,
614,
615,
616,
617
On the preparation and use of colours.
618,
619,
620,
621,
622,
623,
624,
625,
626,
627
Of preparing the panel.
628
The preparation of oils.
629,
630,
631,
632,
633,
634
On varnishes [or powders].
635,
636,
637
On chemical materials.
638,
639,
640,
641
. . .