Biblxogeaphy, 
37 
Light Blue and Park Blue , , 
. . 168 
Notes on Sanfernando de Naparima 
.. 173 
Reception (By L. B. T.) 
185 
Notices of Memoies. 
On the Geology of the Nqetheen Westindia Islands. 
By P. T. Clevo. 
Mr. P. T. [Oleve has presented to the Royal Swedish 
Academy of Sciences a memoir on the Geology of the 
North-eastern Westindia Islands. This communication 
treats only of the geology and the minerology of the 
Islands in question ; the paleontology being reserved for 
a future paper ; but there are notices of some of the fossils 
observed by the author, who also gives a summary of the 
geology of the other parts of the Westindies, as far as it 
is known from publications. 
The author gives detailed accounts of the geology of the 
islands visited by him, namely the Yirgin Islands, Porto- 
rico, Santacruz and the Leeward islands. He has ob- 
served a great variety of formations in these islands, in 
which the hypogene and volcanic rocks [appear in great 
force. Of the series of formations the relative age of 
which is ascertainable by organic remains we have the 
miocene in Anguilla and probably in some of the other 
islands. In St. Parts the author discovered limestone 
with fossils resembling those of the Sanfernando beds in 
Trinidad, which he regards with considerable probability 
as being of eocene age, its characteristic echinoderm being 
Bchinolampus ovumserpentis Guppy (that of the miocene of 
Anguilla being JE. lycopersicm Guppy). The cretaceous 
