THE MENTAL LIFE OF FISHES
337
this power is ascribed the ability to control opposing tenden—
oies, So that, for eXample, the clo'sing muscles of the mouth
do not operate at thesame time as the opening muscles.
It is evident that this power
COn‘dition of the braincells brings forward the queSti0n Whether instincts in the
.
Old sense really exist. lt:impliesa ”constantwatchfulness
the part of the Œganisr,and; the
watchfulness by shock,— poisons, or
is perhaps the best external indication of its existence,
Instinct,
if the word is to be retained, ,—has' to°be
kept :distinctfrom reex
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2.
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It is often Said that the instincts of
.
anima—ls are:replete “
With intelligence and we may take this to be literally true -
inr‘theorÿ andgin fact.» In addition to their , presumed
…
_
they disPlaya power of selection
on: the part
,ItÏ_ does not ,matterf'Whe-‘ther-jthis :poy‘ver is
inined; in,
or not.: :If it is,
ties of,allfons
from the highest to the»lowest:are
j
the same »categ0ry. . For all
,
purposesheweverthemstmctlve p—OWŒÏ0f selectionj;may
,
:
-
besaidtocemefremmtelhgenœ
as
f
jÊ:_Ï
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ïAs the”
the
in:?
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years,
,
food,
kid
“if
;The
‘àlfndst
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_ar‘1ÿthingfrorn
leech to, & frog,3bnt—æ’asf—it-.groWS'pldê£=iî ,ï'
:,
shows
…
.
.
—
__.inseä‘Ct—loñn'g shes-ar'el—i'y—ing1nth€sameWaef$h0VVÔVÔr
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it :—suffers
Therelsoftentooaseasœal Vär1atwnmthærhhngs
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ThefemalePlæceaftertheyëàâëe‘=$pawèŸdäzsæk5:9ützth'6
,
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îgi1äeuds wherelîgheÿacaflîÿe mosy0naW0mdletthèËmai‘ël
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