PLATE 1 
EXPLANATION OF FIGURES 
The drawings are camera lucida tracings of ganglion cells stained with methylene 
blue, and seen under a 2 mm. oil immersion objective. The dotted lines indicate 
the positions of the cell capsules. 
1 Cell from the submaxillary ganglion. A, neurite (?). 
2 Cell from the otic ganglion. 
3 Cell from the sphenopalatine ganglion. 
4 Cell from the ciliary ganglion. 
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