Bibliography, 303 
figures. It is printed in a superior manner and the impressions of 
the wood-cuts. are peculiarly clear and unblemished, as will be ob- 
served in the specimen from the work annexed to the last number of 
this Journal. 
of Oxford has recently published a new and much enlarged edition of 
S. 
€ present edition will be found to contain nearly twice the amount 
of matter included in the preceding one, embracing not only such new 
facts and observations with respect to volcanos as have been brought to 
light since its first appearance in 1826, but likewise the allied phenom- 
ena of Earthquakes and Thermal Springs as well as a fuller discussion 
of the theories connected with those subjects. 
_ 1. Dr. Mantell’s Wonders of Geology.—This very interesting and 
instructive work has recently appeared in London in a new edition, 
n expected copy now on its way, will we trust enable us to give a 
fuller notice of this improved edition, in a future number. 
8. Journal of the Academy of Natural Sciences of Philadelphia, 
New Series, vol. i, part I. pp. 1-94.—With this number, the Journal of 
the Academy appears in a large q 
furnished with highly finished ill 
members. The following isa list of the articles. 
4. On the Fossil Genus Basilosaurus, Harlan, (Zeuglodon, Owen,) 
with a notice of specimens from the Eocene Green Sand of South 
Species are the Basilosaurus cetoides, Owen, au 
(the Squalodon of Grateloup, found a few leagues south of Bordeaux), 
and a third, the B. serratus, described formerly under the name o 
s. 
Berlin Academy, June 1847,) Maller has distinguished two specie ew 
bree é 
Vertebre and the other with short, which he calls Z. ma 
serves, that as the asilosaurus of Harlan or the Zeuglodon 
us. : a a. 
cetoides of “ona ae established on bones of both these species undistinguished, 
therefore their names cannot stand. 
