"572 Analytical Notices of Books. 



fair remuneration for the labours of its authour, which can only 

 be justly appreciated by those who have been engaged in similar 

 pursuits. He will thus, we trust, be enabled to persevere in the 

 arduous undertaking which he has commenced, and which we 

 heartily wish him health and time to conclude. A work thus 

 excellently conducted will, if completed, form a distinguishing 

 feature of British Entomology, and offer even to foreigners a 

 compendium of science and accuracy with which no other publica- 

 tion on the subject can at all compete. 



The Mineral Concliology of Gieat Britain, or coloured 

 Jigures and descriptions of those remains of testaceous 

 animals or shells, Sfc. Bt/ James D C. Sowerbi/, 

 F.L.S., 8fc. Nos. 81, 82, S3. 



Among the numerous interesting fossils figured in these num- 

 bers, the genus Bellerophon of De Montfort deserves particular 

 mention. Of these singular shells, which differ chiefly from the 

 Nautili by the absence of septa, figures and descriptions are 

 given, in Number 81, of no less than five species, which are 

 readily divisible into two sections, the first without, the second 

 with, a central band ; the two species referable to the first of 

 these sections, B. apertus and B. Cornu Arietis, being entirely 

 new. Seven new species of Pectuuculus, six of Area, and nine 

 of Nucula, form a considerable addition to the previously 

 received information on this family ; and a very pretty plate of 

 Buccina offers to our notice three \xbw species from the SuflFoIk 

 Crag, presented by the zealous oryctologist, whose name is com- 

 memorated in the Ovula Leathesi, the subject of the succeeding 

 figures. A very curious species of Natica, N. Stgaretina, from 

 the marie of the London clay, and two other species of this genus, 

 are given, with a magnificent specimen of N. glaucinoides, in the 

 next plate, which is followed by the remarkable Clavagella coro- 

 nata. Three new species of Nautilus from the Black Rock, Cork, 

 three of Patella, and a fossil Fissurella grwca, from the Suffolk 

 Crag, are contained in the 83d Number ; which concludes with a 



