In the twenty-first month
it danced to music, and in the twenty fourth imitated song; but it is
stated on the authority of other observers that some children have
been able to sing pitch correctly, and even a melody, as early as nine
months. One such child used at this age to sing in its sleep, and at
nineteen months could beat time correctly with its hand while singing an
air.
Concerning touch, taste, and smell, there is not so much to quote,
though it appears that at birth the sense of taste is best developed,
and that the infant then recognizes the difference between sweet, salt,
sour, and bitter. Likewise, passing over a number of observations on the
feelings of hunger, thirst, satisfaction, etc., we come to the
emotions. Fear was first shown in the fourteenth week; the child had an
instinctive dread of thunder, and later on of cats and dogs, of falling
from a height, etc. The date at which affection and sympathy first
showed themselves does not appear to have been noted, though at
twenty-seven months the child cried on seeing some paper figures of men
being cut with a pair of scissors.
In the second part of the book it is remarked that voluntary movements
are preceded, not only by reflex, but also by "impulsive movements," the
ceaseless activity of young infants being due to purposeless discharges
of nervous energy.
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