The most striking of these suggests an extra-terrestrial origin.
"Extra-terrestrial" had no meaning for most of the onlookers.
There was nothing in view which was alien or unearthly or extra-terrestrial.
There had to be some way by which an extra-terrestrial Invader could be told instantly from a human being.
As for the Countess Fergus, half swooning, she had already started for extra-terrestrial regions.
In any case, such universality would demand an enormous supply of water from some extra-terrestrial source.
So he lectured authoritatively on the danger of extra-terrestrial disease-producing organisms being introduced on Earth.
It is not an extra-terrestrial creature pretending to be a man of our own human future.
And an extra-terrestrial wouldn't pretend to be a human if he honestly wanted to warn us of danger!
I mean, of course, to apply this remark only to the globe we inhabit, and not to extra-terrestrial phenomena.