I haven't had the opportunity to study aerostatics the same as Paul here.

He had the combination of two of the sections of pigeonholes, aerostatics and intelligence.

The attempts which we are about to cite do not strictly belong to the history of aerostatics.

Then you were familiar with aerostatics, sir?

I had a wife, a daughter, each of whom felt almost as powerful an interest in aerostatics as I did myself.

Whenever the topic is brought to the front; whenever aerostatics are discussed, your name and fame are sure to play a prominent part.