I pulled two or three little thorns out of my hand, and sat for a time on a boulder of rock.  My muscles were quivering, and I had that feeling of personal disillusionment that comes at the first fall to the learner of cycling on earth.

It suddenly occurred to Cavor that the cold air in the gully, after the brightness of the sun, might give me a fever.  So we clambered back into the sunlight.  We found that beyond a few abrasions I had received no serious injuries from my tumble, and at Cavor’s suggestion we were presently looking round for some safe and easy landing-place for my next leap.  We chose a rocky slab some ten yards off, separated from us by a little thicket of olive-green spikes.

“Imagine it there!” said Cavor, who was assuming the airs of a trainer, and he pointed to a spot about four feet from my toes.  This leap I managed without difficulty, and I must confess I found a certain satisfaction in Cavor’s falling short by a foot or so and tasting the spikes of the scrub.  “One has to be careful you see,” he said, pulling out his thorns, and with that he ceased to be my mentor and became my fellow-learner in the art of lunar locomotion.

We chose a still easier jump and did it without difficulty, and then leapt back again, and to and fro several times, accustoming our muscles to the new standard.  I could never have believed had I not experienced it, how rapid that adaptation would be.  In a very little time indeed, certainly after fewer than thirty leaps, we could judge the effort necessary for a distance with almost terrestrial assurance.

And all this time the lunar plants were growing around us, higher and denser and more entangled, every moment thicker and taller, spiked plants, green cactus masses, fungi, fleshy and lichenous things, strangest radiate and sinuous shapes.  But we were so intent upon our leaping, that for a time we gave no heed to their unfaltering expansion.

An extraordinary elation had taken possession of us.  Partly, I think, it was our sense of release from the confinement of the sphere.  Mainly, however, the thin sweetness of the air, which I am certain contained a much larger proportion of oxygen than our terrestrial atmosphere.  In spite of the strange quality of all about us, I felt as adventurous and experimental as a cockney would do placed for the first time among mountains and I do not think it occurred to either of us, face to face though we were with the unknown, to be very greatly afraid.

We were bitten by a spirit of enterprise.  We selected a lichenous kopje perhaps fifteen yards away, and landed neatly on its summit one after the other.  “Good!” we cried to each other; “good!” and Cavor made three steps and went off to a tempting slope of snow a good twenty yards and more beyond.  I stood for a moment struck by the grotesque effect of his soaring figure—­his dirty cricket cap, and spiky hair, his little round body, his arms and his knicker-bockered legs tucked up tightly—­against the weird spaciousness of the lunar scene.  A gust of laughter seized me, and then I stepped off to follow.  Plump!  I dropped beside him.