"Yes, we will stir by the clock: six minutes each."
"Who is to begin?"
"Shall I begin, as I understand how to do it? Then Margaret can follow, then Mary, then Rosy."
"But how shall we know when it is boiled enough?" said Margaret.
"That is just what I was going to tell you. We cannot say exactly how long it has to boil, but we must try it. When a little of the toffee which has been dropped into a cup of cold water makes a crackling sound, or breaks clean between the teeth without sticking to them, the toffee is done."
measuring the babies. (See [p. 337].)
"Which of us is to try whether it is done, though?" said Margaret.