The influence of the blue ray of the sunlight and of the blue colour of the sky
Subtitle: in developing animal and vegetable life, in arresting disease, and in restoring health in acute and chronic disorders to human and domestic animals
By: as illustrated by the experiments of A.J. Pleasonton and others, between the years 1861 and 1876 ; addressed to the Philadelphia Society for Promoting Agriculture.
Publisher: Claxton, Remsen & Haffelfinger
Published: 1877
Place of publication: Philadelphia
Language: eng
Number of pages: 185
Subjects: Light, Colored; Phototherapy
Other titles: Blue and sun-lights
Notes: On cover: Blue and sun-lights: their influence upon life, disease, &c.

Printed on blue paper.