…
°THE BIOLQGY oF
throùgh the
preliminary changes, bending _upwardS [
aud—clOsing, as;those described in‘ the Pipe-shes. But»
‘
instead of
arch giving"way, it begins to
_,
_,
grow asymmetrically and other structures give way.
_
,
_.
to the imperfect balance in the body, the sh
When it moves bends its head to the one side and the growing
-
structures of the mouth are pulled tothat
The base
of the skull is also pulied in the same direction and the
,_
,
buttressing palatine presses ùpwvards on the ethmoids,uhtil
_
,
.»
_
Ï,
:
_
,
—
? _they also growasymme‘:
Æg
j
trioally and thus aect ,
_
:
@=0°
;? __ —
th
'
f
1…;,:21—,:
_
__
__
_
_
_
a
_..._.
_
,
n
;
]"
the upper.pa=
i_
,_ F3——__
of
skulL‘gets pushed]
,
i}y
f
Cm—GJ
Thesec—harigès '-océür
\!
whenthehttle shes
in
Î
,
—
1ter bttmlf
°
1
__
_
_
,
_
The
j
,
'
of events can'be uhder—
‘;
,
 _
,
-5‘
stood perhaps fromthe
-
'8 _j
{
_,
accompanying diagrams
:*ÎÇ"2
“Ÿ m.
Whiçh__showthe
“
‘
,
changesaswewedfrom
Simmetrlcal(ï)ThenÏrÿàï ;;î99î1f formsï (C)Ïfîâdthe VariÔus_ ;ÏÏ Ï É
arches{Pôcüralglîdkiäghy01dafchha10WŒ-“Jaw 1Ë7Ï)inC1in€
(«W)also gIOWS; tÏΰ
tethesames1deandtheasymmetryaects the Vertèbralf:
the,
ovnt1mo>fthskuugey : The lower? jawxma'y
Lifsu
it lies, té
-
1»Ï . i —: ï î _—Î Î
'
‘1iiiÿfeÂÏ(PIèŒPnÇCteSäÎ,-ànd theeyes
arethusforœdover to: thenght side
Ifnbldd d1pthdtf……1—
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