Then lets it snap back upright in the sky.

This simply means that the bear ate some chokecherries. It uses an anology, "As if it were a lover". Therefore the bear reaches up and looks like its kissing or being affectionate to a tree.

Her next step rocks a boulder on the wall

(She's making her cross-country in the fall).

She, "The bear", is making her trip to her den for the winter. This is supported by the fact that in the lines before this, she was hoarding food. This is also supported becayse it says, "cross-country" in the fall. Thsi is understandable because fall is when bears start to gather food for hibernation.

Her great weight creaks the barbed wire in its staples

As she flings over and off down through the maples,

Leaving on one wire tooth a lock of hair.

This means that as the bear was simply passing through, it gets stuck in a barbed wire. When she does this, she looses a l

He paces back and forth and never rests

Two instruments of nearly equal hope,

And at the other end the microscope,

The me-nail click and shuffle of his feet,

Some topics in this essay:
, people agree, comparison bear, pathetic sedentary peripatetic, pathetic sedentary, lock hair, sedentary peripatetic, cross-country fall, means bear, barbed wire, universe cramped, agreeing greek,