Chapter

 1 Pref|        it ought rather to draw air into its cavity through
 2 Pref|      the formation of spirits, air and blood, from the lungs
 3 Pref|      they oppose the escape of air? And how should the semilunars
 4 Pref|   previously asserted that the air entered by the same vessel
 5 Pref|   prevent the regurgitation of air and not of blood?~Moreover,
 6 Pref|     For they will have it that air passes through this vessel
 7 Pref|        air-fumes flowing from, air proceeding towards the heart -
 8 Pref|      or fuliginous vapours and air permeate this vessel, as
 9 Pref|   wherefore do we find neither air nor fuliginous vapours when
10 Pref|       sluggish blood, never of air, whilst in the lungs we
11 Pref|     lungs we find abundance of air remaining?~If any one will
12 Pref|       the thorax, abundance of air in the lungs, even to their
13 Pref|       the heart either attract air from the lungs, or did the
14 Pref|     did the lungs transmit any air to the heart, in the living
15 Pref|        would instantly see the air making its way by this route,
16 Pref|    namely, the transference of air from the lungs to the heart,
17 Pref| destined for the conveyance of air, it has the structure of
18 Pref|        with the passage of the air, as it so obviously does
19 Pref|     hidden porosities, and the air to be attracted from the
20 Pref|        or invisible ducts, and air through perfectly open passages,
21 VI  |      it may be tempered by the air that is inspired, and prevented
22 VI  |       necessity and use of the air, etc., as also to the variety
23 VIII|        Aristotle says that the air and the rain emulate the
24 XVII|    require a large quantity of air. But of these things, more