Little things, almost impalpable, had happened to justify that doubt.
Defoe possessed genius, and his secret is at the last as impalpable as the secret of genius always is.
The soul was conceived to be a facsimile of the body, sometimes no less material, sometimes more subtle but yet material, sometimes altogether impalpable and intangible.
The word "alcohol" is of Arabic origin, being derived from the particle al and the word kohl, an impalpable powder used in the East for painting the eyebrows.
"If the sovereign power is to be understood in this fuller, less abstract sense, if we mean by it the real determinant of the habitual obedience of the people, we must look for its sources much more widely and deeply than the analytical jurists do; it can no longer be said to reside in a determinate person or persons, but in that impalpable congeries of the hopes and fears of a people bound together by common interest and sympathy, which we call the common will" (Green's Works, 2.404).
Then the " hamattan," or hot, dry wind from the Sahara, begins and brings with it clouds of impalpable dust.
They can take food, though the crudest form of this belief soon passes into the more refined notion that they consume the impalpable essence of the meals provided for them.
The elastic impalpable stuff of the spirit-body is apparently capable of compression or expansion, just as Athena can transform herself into a bird.