Also, rarefaction by the air-pump does not injure air in the least degree.
It, too, was unattached at the other end; it had no connection with the air-pump.
A new kind of existence has been given to bodies in the air-pump.
The impulse came to him as he placed his hands on her air-pump.
Something must have happened to her air-pump above the water.
I work the air-pump, and raise the organ by an exhausted receiver.
Observe all these little bell-glasses which communicate with the air-pump.
It communicated with an air-pump by means of a flexible tube.
There are wanting four new stopcocks fitted to our air-pump.
The air-pump, feed-pump, and plug-rod were worked from the balance-bob.