"The contours of a concave (hollowed out) cone are close together at the center (top), and far apart at the outside (bottom)." — Moss, 1914

Contours of a concave cone

"The contours of a concave (hollowed out) cone are close together at the center (top), and far apart…

The contours of a cone are circles of different sizes, one within another, and the same distance apart, because the slope is at all points the same." — Moss, 1914

Contours of a cone

The contours of a cone are circles of different sizes, one within another, and the same distance apart,…

Contour lines.

Contours

Contour lines.

"The contours of a half sphere are a series of circles, far apart near the center (top) and near together at the outside (bottom), showing that the slope of a hemisphere varies at all points, being nearly flat on top and increasing in steepness near bottom." — Moss, 1914

Contours of a half sphere

"The contours of a half sphere are a series of circles, far apart near the center (top) and near together…

"The nearer the contours on a map are to one another, the steeper is the slope, and the farther the contours on a map are from one another, the gentler is the slope. A wide space between contours then, resembles level ground." — Moss, 1914

Elevation map

"The nearer the contours on a map are to one another, the steeper is the slope, and the farther the…

Illustration of curved and contoured rocks near Old Head of Kinsale.

Contoured Rocks

Illustration of curved and contoured rocks near Old Head of Kinsale.

A terrain or relief topography symbol for contours illustrating elevation of the land commonly used in drafting and map drawing.

Contour Relief or Terrain Topography Symbol

A terrain or relief topography symbol for contours illustrating elevation of the land commonly used…