It read as follows:
In Sneffels Yoculis craterem kem delibat
umbra Scartaris Julii intra calendas descende,
audas viator, et terrestre centrum attinges.
Kod feci. Arne Saknussemm
Which dog Latin being translated, reads as follows:
Descend into the crater of Yocul of Sneffels, which the shade of
Scartaris caresses, before the kalends of July, audacious traveler,
and you will reach the centre of the earth. I did it.
ARNE SAKNUSSEMM
My uncle leaped three feet from the ground with joy. He looked radiant and handsome. He rushed about the room wild with delight and satisfaction. He knocked over tables and chairs. He threw his books about until at last, utterly exhausted, he fell into his armchair.
"What's o'clock?" he asked.
"About three."
"My dinner does not seem to have done me much good," he observed. "Let me have something to eat. We can then start at once. Get my portmanteau ready."
"What for?"
"And your own," he continued. "We start at once."