The Influence of the Blue Ray of the Sunlight and of the Blue Colour of the Sky: In Developing Animal and Vegetable Life; In Arresting Disease and in Restoring Health in Acute and Chronic Disorders to Human and Domestic Animals

The Influence of the Blue Ray of the Sunlight and of the Blue Color of the Sky: In Developing Animal and Vegetable Life; In Arresting Disease and in Restoring Health in Acute and Chronic Disorders to Human and Domestic Animals

On the Influence of the Blue Color of the Sky in Developing Animal and Vegetable Life: As Illustrated in the Experiments of Gen. A. J. Pleasonton, Between the Years 1861 and 1871, at Philadelphia; Read Before the Philadelphia Society for Promoting Agricul