One will observe phenomena, and ascribe it wholly to one cause, when perhaps a half-dozen causes have been at work.

Another man will ascribe it wholly to another of these causes.

And thus they seem to contradict each other, when they are both, in part, right.

I've noticed that very frequently since I began to read the scientific books on oceanic matters.

They draw their conclusions too hastily, and are too positive on doubtful subjects." I have often thought of this remark of Capt.