AIR SPACES IN LUNG OF CAT PLATE 4 
WILLIAM SNOW MILLER ; 
ce Lobule 1 
Ea Lobule 2 sae 
ae <> 
(_] Lobule 3 YS DR 
{) Ductulus alveolaris 
and its alveoli 
fi) Atria and alveoli on same 
Cc) Bronchioli respiratorii a 
GB Bronchiolus 
