On the Organs of Vision in the Common Mole. 99 
optic nerve in the Mole, and declared it to be a branch of that divi- 
sion of the fifth pair of nerves which is distributed to the nose. 
boscis. It takes a long oblique course, lying above the muscles of 
the nose, and passing in an outward and backward direction, sur- 
rounded by dense structures, is finally inserted into the posterior 
ision." 
He described certain filaments, which he stated to be unconnected 
with the optie nerve, and to be similar to those brauches which are 
found in the tissues around the eye in other animals. "The absence 
nerves of another and different sense. 
sequent to the birth of the animal. : xri i ^ 
Von Siebold has published the results of inc into the 
