NERVE TERMINATIONS IN THE LUNG ole 
but this condition had previously been found to obtain also in 
non-experimental rabbits when stained by the same method. 
The left lung, however, revealed a strikingly different picture 
with respect to the ganglia as well as to the intrapulmonary 
nerve trunks. As shown in figures 4 and 5, nearly all of the 
cells were characterized by an absence of the synaptic network. 
As compared with the ganglionic cells of the right lung, the 
majority of nerve cells in the left lung appeared also to be some- 
what shrunken in size. 
Fig. 4 Ganglion cells from left lung of same rabbit (R7) showing a single 
pericellular network. Methylene-blue stain. 60. X 600. 
An occasional pericellular network was found about a cell here 
and there in the left lung, but these were few in number. They 
evidently represent the terminations of preganglionic fibers 
from other sources than the homolateral vagus. Schiff (50) 
states that each lung receives fibers from both vagi, and MOll- 
gaard (712) more recently has come to similar conclusions. It 
appears probable, therefore, that preganglionic fibers from the 
contralateral vagus cross through the posterior pulmonary 
plexus, enter the lung at the hilum and terminate around some 
