Fear of nature's great sounds, more especially the wind and thunder, which is common among older children, owes its intensity not merely to their volume, which seems to surround and crush, but also to the mystery of their origin. We should remember too that sounds are, for the child still more than for the adult, expressive of feeling and intention. Hence religious ideas readily graft themselves on to the noisy utterances of wind and thunder. Wind is conceived of, for example, as the blowing of God when angry, and thunder, as we have seen, as his snoring, and so forth. I am far from saying that all children manifest this fear of sounds. Many babies welcome the new and beautiful sounds of music with a joyous greeting. Even the awful thunder-storm may gladly excite and not frighten. Children will sometimes get through the first months without this fear, and then develop it as late as the second year. I think, then, that in these disturbing effects of sound we have to do with something more than a mere nervous shock or a start. They involve a rudiment of the feeling of uneasiness at what is unexpected and disturbing, and so may be said to be the beginning of true childish fears. This element of anxiety becomes more clearly marked where the sound is not only disturbing but mysterious, as when a toy emits a sound, or water produces a rushing noise in some hidden pipe. There is another kind of disturbance which shows itself also in the first year, and has a certain analogy to the discomposing effect of sound. This is the feeling of bodily insecurity which appears very early when the child is awkwardly carried, or when in dandling it, it is let down back-foremost. One child in her fifth month was observed when carried to hold on to the nurse's dress as if for safety. And it has been noticed by more than one observer that on dandling a baby up and down in one's arms, it will on descending, that is when the support of the arms is being withdrawn, show signs of discontent in struggling movements. This is sometimes regarded as an inherited fear; yet it seems possible that, like the jarring effect of noise on the young nerves, it is the result of a rude disturbance. A child accustomed to the support of its cradle, the floor, or somebody's lap, might be expected to be put out when the customary support is withdrawn wholly or partially. The sense of equilibrium is disturbed in this case.