Key to the Secrets of Nature

A white rectangular bookplate or label is pasted onto the marbled paper. It features a circular emblem in the center. Inside a blue oval, a white pelican is shown feeding its young with blood from its breast. This is the symbol of the Pelican in her Piety, which represents self-sacrifice and the process of revitalization in alchemical tradition. The oval is surrounded by a circular border with a Latin inscription. In the top left corner of the white label is the letter M.