TO 
4tl* JPonquc 
MEMBER OF THE TKRTITUTE 
PROFEFJSOR OF THE NATURAL HISTORY OF INOROANIC BODIES 
IN THE COLLfeOE DE PRANCE 
AND 
ifl. AiigHstc 
MEMBER OF 'I'llE* INSTITUTE 
DIRECTOR OF THE OEOLOOTCAL SURVEY OF FRANCE 
IHSTINOITISHED REPRESENTATIVES 
OF THAT FREN(m S(HlOOL OF OEOLOGY 
WITTOH BY THE HANDS OF DESMAREST FOUNDED THE 
STUDY OF ANCIENT VOLCANOES 
AND HAS SrN(0'’i DONE SO MUCH TO 
PRC»MOl'E ITS PROISRESS 
THESE VOLUMES ARE INSCRIBED 
WITH THE HIGHEST ADMIRATION AND 
ESTEEM 
