In due succession: but the finer air
Which not so palpably nor obviously,
Though no less universally, can touch
The whole circumference of that emptied sphere,
Fills it more fully than the water did;
Holds thrice the weight of water in itself
Resolved into a subtler element.
And yet the vulgar pall the sphere first full
Up to the visible height—and after, void;
Not knowing air's more hidden properties.