TO
COUNT GASTON DE SAPORTA,
OF AIX IN PROVENCE,
WHOSE EXTENDED MEMOIRS ON THE FLORA OF THE TERTIARIES OF SOUTHERN FRANCE FORM THE BASIS
OF THE BIOLOGICAL CONCLUSIONS OF THIS ESSAY ; AND WHOSE UNWONTED COURTESIES HAVE PERMITTED
A CAREFUL EXAMINATION OF THE MOST IMPORTANT FOSSIL BUTTERFLIES,
THIS MEMOIR IS RESPECTFULLY INSCRIBED BY
THE AUTHOR.
