Waldron, making no comment, followed every stroke with keen interest.
"From these tanks," the Billionaire continued, "smaller pipes will convey the gaseous oxygen to every house taking our service." "Just like ordinary gas ?" "Precisely.

Each room will be fitted with an oxygen jet apparatus, something like a gas burner, with a safety device to prevent over supply and avoid the dangers of combustion." "Combustion ?" "Yes.

In pure oxygen, a glowing bit of wire will burst into flame.

Your cigar, there, would catch fire, from the merest spark in its inmost folds.

Too much oxygen in a room not only intoxicates the occupants--we've already seen _that_ effect--but also develops a great fire risk.