— sacc. endolymph. 
eie\= eanalis post. 
= \==cochilea: 
‘chord. tymp. 
Fig. 2. Profile reconstruction showing the membranous labyrinth and the 
fifth and seventh cranial nerves. The sensory part of the seventh is indicated 
by solid black. The great superficial petrosal nerve extends from the geni- 
culate to the spheno-palatine ganglion. Human embryo 30 mm. long, Mall 
Collection No. 86, magnified about 7 diams. 
