captain davis, who lay with his head on a gun, was thrown out of his cabin!" lionel then goes on to impute the shock to an earthquake, and seems to substantiate the imputation by stating that a great earthquake, somewhere about that time, did actually do great mischief along the spanish land. but i should not much wonder if, in the darkness of that early hour of the morning, the shock was after all caused by an unseen whale vertically bumping the hull from beneath.