TEGUMENTAL ORGANS 23 
from the crown of the head. These were. evidently the sites of 
former teats—that is, of former orifices; for, as Ammon rightly 
remarks, the hair vortices agree with the diverging vortex 
found at the point where the canalis sacralis finally becomes 
closed—the glabella coccygea, or “sacral dimple,’ which lies above 
the coccygeal vortex. This latter, however, is a converging vortex, 
EZ 
6 
Fic. 15.—FRONT VIEW OF THE Bopy or Aa HospiTaL ASSISTANT, TWENTY-TWO AND A 
HALF YEARS OLD. (After O. Ammon. ) 
m’, normal teats ; *, hair vortices above these, pointing to the former presence of 
supernumerary teats. 
such as always occurs where a protuberance formerly existed (cf. 
ante, p. 5); but the glandular area of the breast, as Ammon further 
rightly argues, originally developed not as an elevation, but as a 
depression, out of which the teat rose up secondarily. According 
to Ammon there are, on the normal teats also, smaller diverging 
vortices, in which “the hairs course round and round the areole... 
but these are soon lost in the general course of the hair tracts.” * 
1 J here reprint by permission a letter received from Herr Otto Ammon, on the 
10th February 1892. 1 have refrained from commenting upon it, as I have not yet 
been able to confirm the observation recorded :— 
‘* Allow me to draw your attention to another case which I have not yet recorded. 
