The influence of the blue ray of the sunlight and of the blue color 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: 1876
Place of publication: Philadelphia
Language: eng
Number of pages: 185
Subjects: Light, Colored.; Phototherapy.