As a gas, or as a liquid, which can be shipped to any desired point and there transformed into gaseous form.

Liquid air can also be produced by this same machine, for refrigerating purposes.

You understand, of course, that when liquid air evaporates, it is only the nitrogen that goes back into the atmosphere at 313 degrees below zero.
The residue is pure liquid oxygen.

In other words, this apparatus will make money as a liquid air plant, and furnish you oxygen as a by-product.
"It will also turn out nitrogen, for fertilizing purposes.

The income from a full-sized machine, on this pattern, from all three sources, should be very large indeed." "Good," put in Waldron.