Predicting the State of the weather.
--The method of recording and predicting the weather, pursued each day at the Smithsonian Institute, is peculiarly simple.
They have a map of the United States
hung upon a board, with pins stuck through at the points where the observers of the Institute
Daily reports are received by telegraph from many of these points.
Each morning an assistant hangs a corn on the pins to indicate the state of the weather — black if raining, green if snowing, brown if cloudy, and white if fair.
All storms travel East, and thus they are enabled to predict, with great certainty, the condition of the weather twelve hours in advance.