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.

620 * 622

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

. . .