effects produced on the air cells of the lungs ^ ^c. 307 
which the deeper seated cells are filled with mercury ; mag¬ 
nified in the same degree. 
Fig. 6. The bronchial ramifications traced to their termi¬ 
nation at the air cells in the hare; magnified in the same 
degree. 
Fig. 7. A similar portion of the bronchial ramifications in 
the sheep ; equally magnified. 
