venture forth," said Mr. Roumann. "But I must first conduct some
further experiments. In the meanwhile suppose you boys get out some
fur-lined garments, for, though it is only twenty-eight degrees, we
will need to be well clad after the time spent inside this warm
projectile."

"It does look as if he expected to get us out," remarked Jack, as he
and his chum went to where Andy Sudds was.

"Yes, you'll get a chance to pick up diamonds after all, Jack. That is,
if there are any here."

"Of course there are diamonds. You wait and see," and then, with the
help of the old hunter, they took from the store-room their fur
garments.

It was half an hour before the warm clothes were sorted out, and then
the boys went back to where the two professors were.

"Well," asked Jack cautiously, "can we go outside?"

"I think so," answered the German cheerfully. "But you must always be
careful to carry one of these with you," and he handed to each of the
boys a steel rod about two feet long, at the end of which was a small
iron box, with perforations in the sides and top.

"What is this?" asked Jack. "It looks like a magician's wand."

"And that is exactly what it is," said Mr. Henderson. "As there is no
atmosphere fit to breathe on the moon, we have been forced to make our