maynard metcalf from johns hopkins here in maryland, a renowned zoology ists and metcalf will take the stand and he will argue with darrow questioning him that almost all zoology is botanist and geologists, except evolution as fact. he will with darrow leading him be asked to estimate when the process of evolution began. and he says, metcalf says, well, mass extinctions complicate the story, but it was closer to 600 million years ago. then the 6000 years ago that some fundamentalists accepted as the date based on bishop usher's calculations, which we described last lecture. and judge ralston is going to hear this and said, i've heard enough. and he says, this scientific testimony is inadmissible. first of all, the non-expert mind can comprehend what we mean by descended from a lower order of animals. something more primitive than humans. we don't need experts to dance on the head of a pin. but he also says the question of evolution that's not what's on trial here. the question is, did scopes teach it? that's it. the state is allowed to say what's taught. scopes taught it. that's what's