lutely necessary. A large shrub in a tub stood in each corner.
"How to get rid of our excessive carbonic dioxide without unduly wasting our oxygen is a delicate and vital question," said Challenger, looking round him after the five iron tubes had been laid side by side against the wall. "With longer time for preparation I could have brought the whole concentrated force of my intelligence to bear more fully upon the problem, but as it is we must do what we can. The shrubs will be of some small service. Two of the oxygen tubes are ready to be turned on at an instant's notice, so that we cannot be taken unawares. At the same time, it would be well not to go far from the room, as the crisis may be a sudden and urgent one."
There was a broad, low window opening out upon a balcony. The view beyond was the same as that which we had already admired from the study. Looking out, I could see no sign of disorder anywhere.
