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68
in coming out they tear the membranous envelopment in
which they are enclosed. Eustachius,* is the first who per-
ceived that the the teeth of the first and second dentition
were formed in the womb of the mother, that the two sets
were placed on the same line, principally of the class of in-
cisors, canine and first molar teeth, and that their production
could not be sensibly perceived until after birth ; after two
months, there are found in each dental arch four superior in-
cisors, two canine, and three molares, above and below, shut
up in their follicles, and surrounded by a gelatino-mucus
liquor, and each tooth is contained in its socket ; he gives a
description of the teeth of the adult, examines in order the
structure and composition of the first teeth, explains the man-
ner in which they are produced, and points out the time
when they fall out of their sockets, their varieties, their dis-
eases, and their uses : it is a complete treatise on dentition,
which merits to be used as a model."
Hemard has made the same researches as Eustachius and
Fallopius, but he did not carry them so far as those two
anatomists.
Until the time of Duverney, little attention was paid to
this important part of anatomy and physiology
; it was re-
served for this celebrated anatomist to extend the knowledge
of Eustachius, and to explain the particular structure of the
teeth at different periods of life ;(«) Delahire his cotempo-
rary and his friend pursued in some degree the same
course,(6) and Winslow profited by the knowledge of these
*Opuscula anatomicatractatus de denti'ms.
Lugduni Batavorum, 1707.
tRecherches de la vraie anatomie des dents, nature et propriete d'icel-
les. Lyon, 1582.
68
in coming out they tear the membranous envelopment in
which they are enclosed. Eustachius,* is the first who per-
ceived that the the teeth of the first and second dentition
were formed in the womb of the mother, that the two sets
were placed on the same line, principally of the class of in-
cisors, canine and first molar teeth, and that their production
could not be sensibly perceived until after birth ; after two
months, there are found in each dental arch four superior in-
cisors, two canine, and three molares, above and below, shut
up in their follicles, and surrounded by a gelatino-mucus
liquor, and each tooth is contained in its socket ; he gives a
description of the teeth of the adult, examines in order the
structure and composition of the first teeth, explains the man-
ner in which they are produced, and points out the time
when they fall out of their sockets, their varieties, their dis-
eases, and their uses : it is a complete treatise on dentition,
which merits to be used as a model."
Hemard has made the same researches as Eustachius and
Fallopius, but he did not carry them so far as those two
anatomists.
Until the time of Duverney, little attention was paid to
this important part of anatomy and physiology
; it was re-
served for this celebrated anatomist to extend the knowledge
of Eustachius, and to explain the particular structure of the
teeth at different periods of life ;(«) Delahire his cotempo-
rary and his friend pursued in some degree the same
course,(6) and Winslow profited by the knowledge of these
*Opuscula anatomicatractatus de denti'ms.
Lugduni Batavorum, 1707.
tRecherches de la vraie anatomie des dents, nature et propriete d'icel-
les. Lyon, 1582.
