A few minutes afterward I tied myself to young Peter, ran down after the others, and caught them just as they were commencing the descent of the difficult part.

Cautiously he lowered himself over the edge of the cliff, and with utter noiselessness commenced the descent toward the bottom of the gulch.

The ape-man smiled and commenced the descent to the gorge.

I commenced the descent, wearily, wearily down through my league-long, year-long journey.

The two brutes had not paused at the summit of the escarpment, but had immediately commenced the descent into the valley.

Presently we commenced the descent of a very steep incline.

We commenced the descent of the steep pass on foot.

Then he commenced the descent toward the ground.

Vyotsky watched him commence the descent, gritted his teeth and slowly lifted the barrel of his gun.

It is also helpful to calculate the top of descent, or the point at which the pilot would plan to commence the descent for landing.