She broke off short, bent over his rigid form, and whistled.

And this was done without having to force all the different kinds of knowledge into the same rigid, standard form.

The bell of a clarinet made for a sufficient mouth, despite its rigid form.

Out of the steam a rigid form took shape.

His rigid form relaxed as the sound left his lips.

Its threshold held his rigid form for the moment that he stood staring.

He gathered the rigid little form into his arms and went out.

They moved into the trees, slipping and groping their way through the near black, carrying the rigid form of the girl.

Life seemed to wrest itself from the rigid form.

The two men carried the rigid form into the apartment and placed it upon a couch beside the wall.