"By Jemima," said Spink, "we're both right, Day. There are two of 'em; that second squeal never came out of the same whistle that the first one did!"
Now the nature of fog is something that no fellow can understand. Seamen must not think they are a long way off if they hear a sound faintly, or even if they do not hear it at all. That's bad enough, but there is worse behind. They are not to reckon they are near because they hear it plainly, or that it isn't to be heard farther away at some other spot if they cease to hear it at all. And, furthermore, any notion that a sound comes from any particular direction is the biggest trap of the lot. Now the uninitiated can understand that they do not understand, and that seamen are in the same awkward fix whenever a fog comes down to cheer them on their weary way. The two steamers coming out of nothingness and butting into it were commanded by men who trusted to the evidence of their senses, as if they were police magistrates trusting to policemen. They hooted and bellowed in the 'most wonderful manner, and said with one short blast that they were directing their course to starboard. And as
