By the 1970's, progress toward a truly practical superconductor seemed to stop.

But progress in research does seem to go best when the scientists are left to themselves.

Then progress seemed to stop for a few years.

But the tide was turning, and their progress seemed to be slowing.

Although our current progress may seem like a modest first step, it's an energetic start.

There was an occasional scream but the progress of the attack seemed to be steady.

Just when progress on important issues seems within reach, he's left the vital center of American politics.

In any event, the progress made so far - which is very considerable - still seems to me to be insufficient.

The progress of the disease seems to have accelerated somewhat in the last week, and his doctor is very worried.

But the progress of no one of them seems ever to have been very rapid.