I said to myself over and over in reading: "How much greater the triumph, if instead of dwelling thus only upon America's vacuities, he could make positive suggestion of what in 'Europe' or Asia may exist to fill them."
"The Letters of William James, Vol. II"
William James
You first fill the glass with slices round-wise cut, and then the Gelly is poured in to fill up the vacuities.
"The Closet of Sir Kenelm Digby Knight Opened"
Kenelm Digby
The abstraction of this matter causes, no doubt, subterranean vacuities and a corresponding giving way of the surface; if it were not so, the average density of parts of the interior would be always lessening and the size of the planet increasing.
"The Student's Elements of Geology"
Sir Charles Lyell