Short description: In Russian. Bogoyavlensky, Leonid Nikolaevich. Luminous permanent formulations. Petrograd: Scientific Chemical and Engineering Publishing House, 1919. Svetyashchiesya sostavy postoyannogo deystviya. In Russian /Luminous permanent formulations. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU9124160