I drove on, a peculiar change crept over the appearance of things. The palpitating greyness grew darker then though I was still travelling with prodigious velocity the blinking suc cession of day and night.
Which was usually indicative of a slower pace, returned, and grew more and more marked. This puzzled me very much at first. The alternations of night and day grew slower and slower, and so did the passage of the sun across.