1893.] Yotes on Marine Laboratories of Europe. 629 
over the rocks that are becoming exposed by the receding tide. 
A strong enclosure of masonry serves as a vivier to be used for 
experiments as well as to retain water for supplying the labo- 
ratory. The students are, in the main, those of the Sorbonne, 
and are under the direction of Dr. Prouho, their maitre de con- 
férences. They are given every opportunity to take part in the 
collecting excursions, frequently made in the laboratory’s 
ROSCOFF.. INTERIOR OF AQUARIUM ROOM. 
(July, 1891.) 
small sailing vessels, among the rocky islands of the neighbor- 
ing coast. Strangers, too, are not infrequent and are generously 
granted every privilege of the French student. Liberality is 
one of the characteristic features of Roscoff. The stranger who 
writes to Professor de Lacaze-Duthiers is accorded a work 
place which entitles him gratuitously to every privilege of the 
laboratory—his microscope, his reagents, even his lodging- 
