IT was one of the changing days of our Oldport midsummer. In the morning it had rained in rather a dismal way, and Aunt Jane had said she should put it in her diary. It was a very serious thing for the elements when they got into Aunt Jane's diary. By noon the sun came out as clear and sultry as if there had never been a cloud, the northeast wind died away, the bay was motionless, the first locust of the summer shrilled from the elms, and the robins seemed to be serving up butterflies hot for their insatiable second brood, while nothing seemed desirable for a human luncheon except ice-cream and fans. In the afternoon the southwest wind came up the bay, with its line of dark-blue ripple and its delicious coolness; while the hue of the water grew more and more intense, till we seemed to be living in the heart of a sapphire.