469

On the treatment of light for views of towns.

OF SMOKE AND DUST.

If the sun is in the East the smoke of cities will not be visible in the West, because on that side it is not seen penetrated by the solar rays, nor on a dark background; since the roofs of the houses turn the same side to the eye as they turn towards the sun, and on this light background the smoke is not very visible.

But dust, under the same aspect, will look darker than smoke being of denser material than smoke which is moist.

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

Notebooks of Leonoardo da Vinci

VIII: Botany for Painters and Elements of Landscape Painting.

. . .

The effects of midday light.

The appearance of trees in the distance.

450,

The cast shadow of trees.

Light and shade on groups of trees.

453,

454,

455,

456,

On the treatment of light for landscapes.

458,

459,

460,

461,

462,

463,

On the treatment of light for views of towns.

465,

466,

467,

468,

The effect of wind on trees.

470,

471,

472,

Light and shade on clouds.

474,

475,

476,

On images reflected in water.

Of rainbows and rain.

479,

Of flower seeds.

How to ascertain the dispositions for an artistic career.

The course of instruction for an artist.

483,

484,

The study of the antique.

486,

The necessity of anatomical knowledge.

488,

. . .