After a littleexploration through the thick growth of kelp and sea grass, he picks up apromising-looking rock about the size and shape of a slightly melted bowlingball.

Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.

Meanwhile, back at the ranch (or rather, at the farm he'd sold), the new owner had picked up an unusual looking rock about the size of a country egg, and put it on his mantle as a sort of curiosity.