Beginning with the left foot behind, in passo naturale, lift it from the ground and thust it forwards so that the left toes are about four inches in front of the right, and put the left toes on the ground, but hold the heel up. If you want to do it backwards, thrust [the left foot] backwards so that the left toes are about four inches behind the right heel, and put the toes [down] as in the figure for the passo naturale. This can also be done per contrario, and when you begin with the feet even. It is called this because you put the toes of one foot on the ground.