280 De Verneuii. 
M. Deshayes. This savant, who now came to the aid of strati- 
grapes! geology by his profound knowledge of fossil shells, 
took much pleasure in instructing de Verneuil in this important 
study in a private course rendered illustrious by distinguished 
auditors, themselves soon to become eminent geologists. 
having made, in 1838, a special study of the lower 
beds of the Bas-Boulonnais, M. de Verneuil had already become 
icholas warmly favored this enterprise, the grandeur and 
utility of which he fully appreciated ; and that many learned 
