"Very well, then, we will start at sunrise in the morning. We'll each carry a hatchet, a knife, matches in water-tight cases, and a good bit of lunch. I'll carry the barometer, Glen shall take charge of the thermometer, and 'Grip' shall bring along his brains. Now I'd advise you both to turn in, and lay up a supply of rest sufficient to carry you through a harder day's work than any we've done on this trip yet."