Logs as Cylinder Models

Small logs or branches of trees cut into suitable lengths make excellent models. The length of each piece may vary from one to two times the diameter. Saw out sections as shown in Fig. 2; that is, cut away one. eighth, one-quarter, one-third or one-half of four logs, as in A, B, C, D. Fig. I is made to show that the same methods are used for drawing cubes, prisms and other square-shaped
objects as for curved ones. The perspective principle is the same for all.
The logs may be drawn in various positions, as vertical, horizontal, receding and right and left receding cylinders.

Substitute for Pencil Compass

Take a strip of cardboard about 1 x 4 inches in size. Prick holes at intervals of 1/4 inch along the middle of its length. Stick pin through cardboard and drawing paper into the drawing board.

Place point of pencil through any of the holes and circles are easily made. The diagram explains its construction and use.