"The robin was twitching, tremoring, convulsing uncontrollably, and peeping occasionally. The student handed the bird to me, and in a few minutes it was dead in my hands. It was April 23, 1963, and I was in my laboratory at in , when the student walked in with the bird. A week earlier the s of Hanover had been sprayed with the insecticide DDT to control the spread of by s."