Coeur et trachée
I saw them thus as the result of examining a great many viscera …..The two vessels called the right and left air doors’ unite to form one vessel which enters the heart and from the left side turns horizontally, and behind connects with the wei-tsung vessel (the all embracing or protecting vessel). The heart is placed below the air vessel, not below the lung vessel. The heart and the lobes of the lungs above are on the same level.
[Wang Qingren (1768-1831), Yi Lin Gai Cuo (Correction des erreurs médicales, 1830), traduction John Dudgeon (1893)].