It may be well to begin our study of fear by a reference to the effect of startling. As is well known, sudden and loud sounds, as that of a door banging, will give a shock to an infant in the first weeks of life, which though not amounting to fear is its progenitor. A clearer manifestation occurs when a new and unfamiliar sound calls forth the grave look, the trembling lip, and possibly the fit of crying. Darwin gives an excellent example of this. He had, he tells us, been accustomed to make all sorts of sudden noises with his boy, aged four and a half months, which were well received; but one day having introduced a new sound, that of a loud snoring, he found that the child was quite upset, bursting out into a fit of crying.[131] ----- Footnote 131: _Mind_, vol. ii., p. 288. ----- As this incident suggests, it is not every new sound which is thus disconcerting to the little stranger. Sudden sharp sounds of any kind seem to be especially disliked, as those of a dog’s bark. The child M. burst out crying on first hearing the sound of a baby rattle; and she did the same two months later on accidentally ringing a hand bell. Louder and more voluminous sounds, too, are apt to have an alarming effect. The big noise of a factory, of a steam-ship, of a passing train, are among the sounds assigned by my correspondents as causes of this early startling and upsetting effect. A little girl when taken into the country at the age of nine months, though she liked the animals she saw on the whole, showed fear by seeking shelter against the nurse’s shoulder, on hearing the bleating of the sheep. So strong is this effect of suddenness and volume of sound that even musical sounds often excite some alarm at first. ‘He (a boy of four months) cried when he first heard the piano,’ writes one lady, and this is but a sample of many observations. A child of five and a half months showed such a horror of a banjo that he would scream if it were played or only touched. Preyer’s boy at sixteen months was apparently alarmed when his father, in order to entertain him, produced what seems to us a particularly pure musical tone by rubbing a drinking-glass. He remarks that this same sound had been produced when the child was four months old without any ill effects.[132] ----- Footnote 132: _Op. cit._, p. 131. ----- This last fact suggests that such shrinkings from sound may be developed at a comparatively late date. This idea is supported by other observations. “From about two years four months (writes a mother) to the present time (two years eleven months), he has shown signs of fear of music. At two years five months he liked some singing of rounds, but when a fresh person with a stronger voice than the rest joined, he begged the singer to stop. Presently he tolerated the singing as long as he might stand at the farthest corner of the room.” This child was also about the same time afraid of the piano, and of the organ, when played by his mother in a church.