We are deprived of the usual landmarks of terrestrially fixed points.
"My Attainment of the Pole"
Frederick A. Cook
I mean, of course, terrestrially.
"Indian Summer"
William D. Howells
There is absolutely no restraint on the imagination, except a few known astronomical facts-plenty of opportunity for violent and dangerous adventures, strange and terrestrially impossible monsters.
"Astounding Stories of Super-Science April 1930"
Various