may be."

"It's a fine idea," I said, "but it strikes me as a large order all the
same. The moon! I'd much rather try some smaller things first."

"They're out of the question, because of the air difficulty."

"Why not apply that idea of spring blinds--Cavorite blinds in strong
steel cases--to lifting weights?"

"It wouldn't work," he insisted. "After all, to go into outer space is not
so much worse, if at all, than a polar expedition. Men go on polar
expeditions."

"Not business men. And besides, they get paid for polar expeditions. And
if anything goes wrong there are relief parties. But this--it's just
firing ourselves off the world for nothing."

"Call it prospecting."

"You'll have to call it that.... One might make a book of it perhaps," I
said.

"I have no doubt there will be minerals," said Cavor.

"For example?"

"Oh! sulphur, ores, gold perhaps, possibly new elements."

"Cost of carriage," I said. "You know you're not a practical man. The
moon's a quarter of a million miles away."

"It seems to me it wouldn't cost much to cart any weight anywhere if you
packed it in a Cavorite case."

I had not thought of that. "Delivered free on head of purchaser, eh?"

"It isn't as though we were confined to the moon."

"You mean?"

"There's Mars--clear atmosphere, novel surroundings, exhilarating sense
of lightness. It might be pleasant to go there."

"Is there air on Mars?"

"Oh, yes!"

"Seems as though you might run it as a sanatorium. By the way, how
far is Mars?"

"Two hundred million miles at present," said Cavor airily; "and you go
close by the sun."

My imagination was picking itself up again. "After all," I said,
"there's something in these things. There's travel--"

An extraordinary possibility came rushing into my mind. Suddenly I saw,
as in a vision, the whole solar system threaded with Cavorite liners
and spheres deluxe. "Rights of pre-emption," came floating into my
head--planetary rights of pre-emption. I recalled the old Spanish
monopoly in American gold. It wasn't as though it was just this planet
or that--it was all of them. I stared at Cavor's rubicund face, and
suddenly my imagination was leaping and dancing. I stood up, I walked
up and down; my tongue was unloosened.

"I'm beginning to take it in," I said; "I'm beginning to take it in." The
transition from doubt to enthusiasm seemed to take scarcely any time at
all. "But this is tremendous!" I cried. "This is Imperial! I ha