"Two things (aside from cold which can be overcome) seem to make a stay in space impossible for human beings; the absence of pressure and the lack of air. I'm going to pump the air from this room, which really amounts to nothing more than a laboratory flask on a large scale, so that the interior will be like airless and pressure-less space."

With great excitement the visitors watched Korff take from the drawer a bundle, which he opened up.

"This is a suit made from rubberized leather, like a diving suit, and absolutely airtight. By means of a special air magazine so much air is constantly produced in the suit that there is a constant pressure of one atmosphere, regardless of the external pressure.

Suchinow silently slipped into the costume and allowed Korf to screw on the helmet with the oxygen chambers. Then he placed himself in the center of the chamber. In one of his leather-covered hands Korf placed a burning candle. Then he closed the door, through the glass window of which all the proceedings could be witnessed. They could clearly hear an electric bell in the chamber, which Korf switched on.

The pump began to work. The candle flickered and went out. The bell seemed to sound fainter and fainter, though the clapper kept on striking. korf shut off the pump.

"Now, except for weight and heat, the same conditions prevail in this chamber as in space. Yet Mr. Suchinow, with whom we cannot communicate at present, certainly feels alright."

Sam looked through the window, and laughed out loud. In fact Suchinow presented a very comical appearance. The suit had swelled to its fullest extent and had taken on the shape much like that of the favorite rubber dolls of festival times.

The expensive round figure in the chamber was walking back-and-forth, swinging his arms up and down, jumping in the air, shadowboxing a little, and removing all doubt about it being in full possession of its powers.

Korf opened a little valve. The air rushing into the chamber, the bell sound it again, and the fantastic figure resume to its normal appearance.

"I congratulate you!" said Suchinow when he had removed the suit. "It is very probably possible to remain in airless space in this pneumatic suit."