ANATOMY OF THE ELEPHANT'S EAR. 
5 
the auditory canal, into which it had been inserted in order 
to show the direction pursued by that canal. The points 
shown by Dr. Buck's illustration are described in his paper. 
In my own illustration the following points call for especial 
attention. At the right hand lower corner is seen a part of 
the articular surface for the condyle of the lower jaw. 
The left hand portion of the illustration shows an unmis- 
takable mastoid prominence ; immediately below this the 
stump of a cartilaginous process, clearly the analogue of 
the styloid process in man; and, to the right of, t. e., 
external to, this process, the entrance of a canal into which 
and through which a probe has been passed. The oppo- 
site extremity of this probe (which was, by the way, a stout 
kitchen skewer %\ millimeters in diameter) can not of course 
be seen in the illustration. It emerged from an opening 
on the anterior aspect of the specimen lying immediately 
above that part of the tympanum containing the ossicles 
and immediately external to the cavity of the vestibule 
(which had been opened by Dr. Buck). Into this anterior 
opening passed a thick bundle of nerve fibres which trav- 
ersed the canal and had to be forcibly crowded aside to 
admit the passage of the probe. This bundle of fibres 
was, at a deeper part of its course, in close relation to the 
auditory nerve; it was manifestly the facial nerve, and the 
canal traversed by it and by the probe (or skewer) was 
clearly the Fallopian canal. The illustration (in which 
the specimen is seen tipped considerably to the right and 
also somewhat away from the spectator) shows the parts as 
about one-third of their natural size. The mastoid process 
or protuberance, measured from the top of the specimen 
to its tip, is centimeters long ; but it is probably only 
throughout the lower half of this distance, viz., for about 
5 centimeters upwards from its tip, that this protuberance 
on the back of the skull can be rightly regarded as a mas- 
toid or teat-like projection. The cartilaginous stump 
