James Edward Preston Muddock, The Sunless City — Chapter II (1905)
“ The excitement in New York City was intense. Flin Flon's lecture was the one topic of conversation. Everything else seemed to be forgotten. The startling theory advanced by the lecturer, and the boldness of his proposition, had broken upon the city with the suddenness of a thunderbolt. It is to be doubted if even a volcano in the centre of Broadway could have caused more astonishment. ”
