"I'd like to see it again with something different," said the Big Business Man. "It can't do any harm." The Banker looked his protest, but said nothing.
"What shall we try, a lizard?" suggested the Very Young Man. The Doctor shrugged his shoulders.
"What'll we kill it with? Oh, I know." The Very Young Man picked up a heavy metal paper-weight from the desk. "This'll do the trick, fine," he added.
Then, laying the paper-weight carefully aside, he dipped up a spoonful of water and offered it to the Doctor.
"Not that water this time," said the Doctor, shaking his head with a smile.
The Very Young Man looked blank.
"Organisms in it," the Doctor explained briefly. "All right for them to get small from the other chemical, but we don't want them to get large and come out at us, do we?"
"Holy Smoke, I should say not," said the Very Young Man, gasping; and the Banker growled:
"Something's going to happen to us, playing with fire like this."
The Doctor produced a little bottle. "I boiled this water," he said. "We can use this."