The temperature of the soil is affected by:-1. The exposure of the surface; 2. The nature of the soil; 3. Its permeability by rain, and the presence of underground springs; 4. The sun's declination; 5. The elevation above the sea, and consequently the heating power of the sun's rays: and 6, The amount of cloud and sunshine.
"Himalayan Journals V2."
J. D. Hooker
They are enabled to do so by the permeability of the cane in one direction, and by its capillarity.
"The Chemical History Of A Candle"
Michael Faraday
Traversing a canopy of cloud, here thicker and there thinner, a wave would cause a disturbance very unlikely to leave the thin and thick parts without any change in their average permeability to light.
"Essays: Scientific, Political, & Speculative, Vol. I"
Herbert Spencer