"Are you trying to play the mysterious great scientist for our benefit?" Dutton demanded. "If you are you're wasting time — I know you, stranger, so take off that mask."
"That's right," I told him. "If you're trying to get our curiosity worked up you'll find we can scram you as neatly as we could five years ago."
"Which scramming generally ended in black eyes for both of you," he retorted. "But I've no intention of working up your curiosity — as a matter of fact I asked you up here to see what I've been doing and help me finish it."
"Help you?" echoed Dutton. "What can we help you do — dissect worms? Some week-end, I can see right now!"
"There's more to this than dissecting worms," Pollard said. He leaned back and smoked for a little time in silence before he spoke again.
"Do you two have any knowledge at all of evolution?" he asked.
"I know that it's a fighting word in some states," I answered, "and that when you say it you've got to smile, damn you."
He smiled himself. "I suppose you're aware of the fact, however, that all life on this earth began as simple uni-cellular protoplasm, and by successive evolutionary mutations or changes developed into its present forms and is still slowly developing?"
"We know that much — just because we're not biologists you needn't think we're totally ignorant of biology," Button said.
"Shut up. Dutton," I warned. "What's evolution got to do with your work up here, Pollard?"