I should say that the lower chord here might buckle at any moment.

I told the Commission that we were using higher unit stresses than any practice has established, and we've put the dead load at a low estimate.

Theoretically it worked out well enough, but it had never actually been tried." Alexander put on his overcoat and took the superintendent by the arm.

"Don't look so chopfallen, Dan.

It's a jolt, but we've got to face it.