CHAP. XL AND NEGATION. 373
might likewise come to serve as signs of negation. 'Mr.
Wedgwood remarks on this subject/8 that " when the
voice is exerted with closed teeth or lips, it produces the
sound of the letter n or m. Hence we may account for
the xise of the particle ne to signify negation^ and possi-
bly also of the Greek ^ in the same sense."
That these signs are innate or instinctive, at least
with Anglo-Saxons, is rendered highly probable by the
blind and deaf Laura Bridgman " constantly accom-
panying her yes with the common affirmative nod, and
her no with our negative shake of the head." Had not
Mr. Lieber stated to the contrary,10 I should have imag-
ined that these gestures might have been acquired or
learnt by her, considering her wonderful sense of touch
and appreciation of the movements of others. With
microcephaloxis idiots, who are so degraded that they
never learn to speak, one of them is described by Vogt,20
as answering, when asked whether he wished for more
food or drink, by inclining or shaking his head. Schmalz,
in his remarkable dissertation on the edxication of the
deaf and dumb., as well as of children raised only one
degree above idiotcy, assumes that they can always both
make and understand the common signs of affirmation
Nevertheless if we look to the various races of man,
these signs are not so universally employed as I should
have expected; yet they seem too general to be ranked
as altogether conventional or artificial. My informants
assert that both signs are used by the Malays, by the
natives of Oeylon, the Chinese, the negroes of the Gxxinea
18 * On the Origin of Language,' 1866, p. 91.
10 'On the Vocal Sounds of L. Bridgman; ' Smithsonian
Contributions, 1851, vol. ii. p. 1.1.
20 * M&moire sur les Mierocephales,' 1867, p. 27.
21 Quoted by Tylor, * Early History, of Mankind,' 2nd
edit. 1870, p. 38.