19
“Certès I saw it (nor can I presume my sight deceivèd me) as high it grew, an airy vapourlet, a subtle fume which, caught by windy currents, whirling flew:
Thence tow’ering tall to circumpolar gloom a Tube appeared so thin, so faint of hue, that man’s unaidèd sight could hardly see it: Yet of some cloudy substance seemed to be it.