"An archway parallel to the picture. the sun's inclination 40° and elevation 30°." (Britannica, 1891)

Shadows of an Archway

"An archway parallel to the picture. the sun's inclination 40° and elevation 30°." (Britannica,…

"A column supporting a horizontal square slab at right angles with the picture plane. A pole leans against the wall behind, and cast sit shadow on the column. Sun's inclination 40°, elevation 35°." (Britannica, 1891)

Shadows of an Column Supporting a Horizontal Square

"A column supporting a horizontal square slab at right angles with the picture plane. A pole leans against…

"A globe casts its shadow upon the ground; the sun's rays parallel with the picture at an angle of 45° with the horizon." (Britannica, 1891)

Shadows of Curvilinear Objects

"A globe casts its shadow upon the ground; the sun's rays parallel with the picture at an angle of 45°…

"Two cylinders, one horizontal, the other perpendicular. The base of the horizontal cylinder is at one angle of 40° with the PP. The sun's inclination 50°m elevation 28°." (Britannica, 1891)

Shadows of Two Cylinders

"Two cylinders, one horizontal, the other perpendicular. The base of the horizontal cylinder is at one…