Some of the air which enters the lung gets from the bronchial tubes into the blood-vessels by transudation, for there is no direct communication between them; and this air, penetrating the body, rapidly cools the blood throughout the vessels.
"Fathers of Biology"
Charles McRae
Just so far as we can recognize the ordinary modes of operation of the common forces of nature,-gravity, cohesion, elasticity, transudation, chemical action, and the rest,-we see the so-called vital acts in the light of a larger range of known facts and familiar analogies.
"The Complete PG Works of Oliver Wendell Holmes, Sr."
Oliver Wendell Holmes, Sr. (The Physician and Poet not the Jurist)