EXPERIMENT UPON A HOUSE-PLANT.

I made an experiment upon a house-plant. It had been standing for several weeks in a southern window, and was just beginning to blossom. The flowers and leaves were particularly rich and beautiful. I removed the plant to a shelf on the rear wall of the room, and then holding the newspaper near it, found every word quite legible.

In forty-eight hours the delicate tints began to grow a little dim. In six days, flower and leaf were drooping; in two days more, the petals began to fall away; in two weeks from the beginning of the experiment, the leaves were yellow, and many of them had fallen.