In all parts of Cardiganshire and Carmarthenshire, it is generally believed among women that it is unlucky to cut the nails of an infant under six months old. The mother bites them off as they grow. Superstition about Whistling.--It is considered unlucky for a young woman to whistle. Whistling is also, or at least was regarded, as "Talking with the Devil." Mr. Ferrar Fenton in "Pembrokeshire Antiquities," page 59, says, that many years ago he happened to whistle one day whilst walking on the pier at Fishguard with a young sea captain. The Captain seemed very much perturbed at the whistling, and at last said to Mr. Fenton:--"I wish you would not whistle here!" "Why? What harm does it do?" "Well, you know," he said slowly, as if shy at his words, "We Welshmen and sailors are superstitious over some things, and whistling as you now do, is one of them." "Superstitious! Not you! But tell me about it: I love all those old tales." "You see," he replied, "my mother and all the old people told me when a boy that such kind of whistling was the way Croignorian (Magicians) talk with the Devil, and sailors believe something like it, and it always makes my heart start to hear it, especially on the seashore." Then he added, "Look! how muggy it is behind Pencaer. You'll bring a gale, and I always feel pity for the sailors afloat when a sou'-wester rages in the channel behind it." When the great Divine and Martyr, Bishop Ferrar, of St. David's, was burnt alive at Carmarthen in 1555, amongst other pretences for his destruction he was accused of being a Magician, and "teaching his infant son to talk with the Devil by means of whistling." In the old days of sailing ships, wind was an agent of great value; and sometimes sailors whistled for a wind, and this whistling was considered a direct invocation to "the prince of the power of the air" to exert himself on their behalf. I have heard of an old man who is still alive who believes that the devil has some control over wind and rain. THE MOON. There are still lingering in Wales many beliefs and practices with respect to the moon. It is considered unlucky to see the new moon the first time through the window, and many persons go out of doors to see her and show her a piece of money to insure good luck while that moon lasts. I was told by an old gentleman in Cardiganshire that he had seen many taking off their hats and bowing to the new moon; some ladies also make a curtsey to her, and it is considered very lucky to see her over the right shoulder. If a person wishes anything when he sees the new moon after New Year's Day, his wish will be granted to him. Putting a Hen to Sit.--A hen is put to sit so as to get the chick out of the egg at the waxing, and not at the waning of the moon, as it is believed that the young birds are strong or weak according to the age of the moon when they are hatched.