Note Return to text — DISCUSSION.

(1) Leygue, in the experiments referred to on page 420, found the value of the moment of the earth thrust about the inner toe, and also determined the plane of rupture. Using the corresponding wedge of rupture, the writer computed the normal component of the thrust. On dividing the moment by this, the distance of the center of pressure from the base was found to be, as an average, for all experiments on sand, 0.34 of the height, and for millet seed, 0.405 of the height.[Footnote 25]