These small things all added to the huge rolls of fat which it was necessary for him to store up for that "absorptive consumption" which kept him alive during his long winter sleep.

This was why Nature had made his little greenish-brown eyes twin microscopes, infallible at distances of a few feet, and almost worthless at a thousand yards.
As he was about to turn over a fresh stone Thor paused in his operations.
For a full minute he stood nearly motionless.

Then his head swung slowly, his nose close to the ground.

Very faintly he had caught an exceedingly pleasing odour.

It was so faint that he was afraid of losing it if he moved.