Roast pig and scientific discovery. Part II.

In Part I of "Roast Pig and Scientific Discovery" (American Review of Respiratory Disease, May 1977). I gave a classic instance of Chance, or Serendipity, as related by Charles Lamb in his "Dissertation upon Roast Pig." In this essay, Lamb tells how many centuries ago Bo-Bo, the Chinese swine-herd's son, stumbled upon the delicacy of roast pork when he accidentally burned down his father's house and barn and in the process roasted ("burnt") nine newly farrowed pigs. I then gave (A) eight examples in which chance speeded or completed a scientist's ongoing work and (B) five examples in which chance changed the direction of a scientist's work and pointed him toward a new goal. In Part II, I will give more examples of a change in direction of a scientist's work that resulted from chance, and speculate on the role of chance in speeding the advance of science.