Drawings of three types of steps; Overlapping rock stairway, individual steps-rock, and individual steps-logs.

The top image is of the overlapping rock stairway. Arrows are used to show the suggested overlap of each rock step which is labeled with the text 'Overlap one third of the surface area'.

The middle image is of the individual steps-rock. The soil tread is labeled and shown to be in between each rock. Arrows and text are used to show the 'Run' and 'Rise' of each step. The image also includes the text 'Outslope 2 to 5 percent'.

The bottom image is of the individual steps-logs. An arrow pointing to the top part of the log which has been flattened is labeled 'Hewed tread'. An arrow points to the depth the log is placed into the ground and is labeled 'Log trenched one half of the log diameter'. The image also includes the test 'Outslope 2 to 5 percent'.