, and others report the eruption of teeth in the
newborn. In Dumas' case the teeth had to be extracted on account of
ulceration of the tongue. Instances of triple dentition late in life
are quite numerous, many occurring after a hundred years. Mentzelius
speaks of a man of one hundred and ten who had nine new teeth. Lord
Bacon cites the case of a Countess Desmond, who when over a century old
had two new teeth; Hufeland saw an instance of dentition at one hundred
and sixteen; Nitzsch speaks of one at one hundred, and the Ephemerides
contain an account of a triple dentition at one hundred and twenty.
There is an account of a country laborer who lost all his teeth by the
time he arrived at his sixtieth year of age, but about a half year
afterward a new set made their appearance. Bisset mentions an account
of an old woman who acquired twelve molar teeth at the age of
ninety-eight. Carre notes a case of dental eruption in an individual of
eighty-five. Mazzoti speaks of a third dentition, and Ysabeau writes of
dentition of a molar at the age of ninety-two. There is a record of a
physician of the name of Slave who retained all his second teeth until
the age of eighty, when they fell out; after five years another set
appeared, which he retained until his death at one hundred. In the same
report there is mentioned an old Scotchman who died at one hundred and
ten, whose teeth were renewed at an advanced age after he had lost his
second teeth. One of the older journals speaks of dentition at seventy,
eighty-four, ninety, and one hundred and fourteen. The Philosophical
Transactions of London contain accounts of dentition at seventy-five
and eighty-one. Bassett tells of an old woman who had twelve molar
teeth at the age of eighty-eight. In France there is recorded dentition
at eighty-five and an account of an old man of seventy-three who had
six new teeth. Von Helmont relates an instance of triple dentition at
the same age. There is recorded in Germany an account of a woman of
ninety who had dentition at forty-seven and sixty-seven, each time a
new set of teeth appearing; Hunter and Petrequin have observed similar
cases. Carter describes an example of third dentition. Lison makes a
curious observation of a sixth dentition.

Edentulousness.--We have already noticed the association of congenital
alopecia with edentulousness, but, strange to say, Magitot has remarked
that "l'homme-chien," was the subject of defective dentition. Borellus