Friday, 13th.—Very warm. Thermometer 92 in the shade, with much air from the south-west. Though very warm, and the power of the sun great, yet the weather has not been close. We have had fine airs constantly; often quite a breeze. It is, indeed, singular that so much air should collect no clouds.
Drive down the valley in the evening. The new-shorn meadows look beautifully, bordered as they are in many places by the later elder-bushes, now loaded with white flowers. The earlier kind, which blooms in May, more common in the woods, is already ripening its red berries.
About eight o'clock there was a singular appearance in the heavens: a dark bow, very clearly marked, spanned the valley from east to west, commencing at the point where the sun had just set, the sky, at the same time, being apparently cloudless. At one moment two other fainter bows were seen; the principal arch was visible, perhaps, half an hour, fading slowly away with the twilight. Neither of our party remembered to have seen anything like it. In superstitious times it would doubtless have been connected with some public calamity.
Saturday, 14th.—A light shower this morning. Just enough to lay the dust and refresh the air, which now blows cool and moist from the northward. Shaded, vapory sky; most grateful relief after the hot sun and dry air of the last ten days. No thunder or lightning.
Monday, 16th.—Rather cooler; thermometer 79. Fine day. Walked in the woods.
Found many of the Philadelphia, or orange lilies, scattered about singly, as usual. They like to grow in woods and groves, and are often found among the fern. The Canadian, or yellow lily,