Beside them was the dark well-hole, with that horrid effluvium
stealing up from its mysterious depths.
Frequently, when passing at the distance of half a mile to leeward of a herd, I have perceived the whole air tainted with the effluvium
In places it was totally obliterated by the passage of many beasts, and where the way was rocky, even Tarzan of the Apes was almost baffled; but there was still the faint effluvium
which clung to the human spoor, appreciable only to such highly trained perceptive powers as were Tarzan's.
And he breathed the breath of the house--a dank savour rather than a smell --a cold, musty effluvium
as from underground vaults mingled with the reeking exhalations of linoleum and mildewed and rotten woodwork.
Volume 7: Origin and Virtues of Gems, 1672; Relations Betwixt Flame and Air, 1672; Essays of Effluviums
, 1673; Saltness of the Sea, 1673; Phil.