= 
294 Scientific Intelligence. 
these fissures, or by faults which have the same origin. e ha 
marked that the rock has not the same dip in the two Heads of Port 
Jackson, a fact indicating the existence of one or more intermediate 
faults. 
Ill. ZooLoey. 
ploring Expedition under Captain Wilkes, U.S.N. 740 pp. 4to, 1846; 
with an Atlas of 61 plates in folio, mostly colored, 1849.—The pub- 
lication of this work has been briefly announced in this Journal. The 
number of species of corals collected in the course of the voyage of 
tion with the mention of the locality; and moreover, in the catalogue 
of species accompanying the remarks upon each genus, the new an 
has thus been a complete revision of the synonymy of the science, 
besides a corrected identification of the species described or figured by 
former writers. 
Out of the 444 known species of coral zoophytes, (excluding the 
Alcyonaria,) 233 are new species first described by the author ; and of 
the remaining 211, 122 are redescribed from specimens. To the genus 
