From Pole to Pole by George Griffith is about the latest experiment examined by Professor Hafkin and Mr. Arthur Princeps: the journey through the center of the earth. Excerpt: "Well, Professor, what is it? Something pretty important, I suppose, from the wording of your note. What is the latest achievement? Have you solved the problem of aerial navigation, or got a glimpse into the realms of the fourth dimension, or what?" "No, not any of those as yet, my friend, but something that may be quite as wonderful of its sort," replied Professor Haffkin, putting his elbows down on the table and looking keenly across it under his shaggy, iron-grey eyebrows at the young man who was sitting on the opposite side pulling meditatively at a good cigar and sipping a whisky-and-soda."
