Geology and Natural History. 147 
s with the provinces 
recognized in the Atlantic Geographical Distribution of Echini 
Oo 
the other case the most cosmopolitan species are reproduced by 
fixed sp The man, carr. ids on the 
where phosphorescent animals congregate in countless multi 
S, an 
of the fossil Medusm, described by him from the lithographic slates 
of Solenhofen. 
rhap 
out of place to discuss his views of the ordinal subdivisions, fur- 
