Warm and quite a thick haze. Cannot see distant hills, nor use my glass to advantage . . . Young caterpillars’ nests are just hatched on the wild cherry. Some are an inch in diameter, others just come out. The little creatures have crawled at once to the extremity of the twigs and commenced at once on the green buds just about to burst, eating holes into them. They do not come forth till the buds are about to burst . . .