166 AMERICAN JOURNAL 



British Conehology, or an Account of the Mollusca which now 

 Inhabit the British Isles and the Surrounding Seas, by j. 

 GWYN JEFFREYS. Vol. 3, 12mo , cloth, 393 pp. and 9 plates. London, 

 John Van Voorst, 1865. (Price 12 shillings per volume.) 



"We have rarely perused a work on Natural History wbicli 

 lias afforded us so much pleasure as the volumes of which the 

 third, as quoted above, is now before us. It is seldom, indeed, 

 that naturalists succeed in investing their subject with an 

 interest which renders it acceptable to those who are not spe- 

 cially instructed therein. In this difficult undertaking Mr. 

 Jeffreys has succeeded. He has given us the best and fullest 

 descriptions in language remarkably free from the ordinary 

 dry technicality of the science, succeeded by most excellent 

 observations on the localities, both recent and fossil, the bib- 

 liography of the species, on the habits of the animals, etc. 



We have never before seen so much and so varied informa- 

 tion contained in such small compass in any work on geogra- 

 phical conehology. The fifty pages of observations on the 

 genus Teredo form the most elaborate example in the present 

 volume of the author's style. 



We commend this work to the perusal of all those interested 

 in the science, and trust that some American author will 

 undertake a work to be written in the same attractive style. 



We congratulate Mr. Jeffreys upon his success, a success 

 which will also benefit our science and mankind by luring 

 numbers to study the subject. 



Annals and Magazine of Natural History. XVI. London, 1865. 

 No. 92. • August. 



On the Homology of the Buccal Parts of the Mollusca. BY 

 DR. OTTO A. L. MoRCii, of Copenhagen. 



On the Operculum and its Mantle. BY DR. o. A. L. MORCH. 

 No. 94. October. 



On the Axistralian Species of Paludina. BY E. VON MAR- 

 TENS, M. D. 

 P.AnstraliSy Keeve, "probably = P. Essingt&nensis, Shuttl." 

 P. afftnis, Martens. This, we are informed, bears the same 

 relation to P. Australis that the European P. fasciata does to 

 P. vivipara. The position of the bands and absence of spiral 

 sculpture will serve to distinguish V. sicpra fas data, figured in 

 our January No., from either of these species. 



P. polita. Martens. This we believe to be the same as Y. 

 suhlineata, Conrad, figured also in our last No. The latter 

 name has priority. 



No. 95. November. 



On the Microscopic Structicre of the Shell of Phynchonella 

 Geinitziana. BY WM. B. carpenter, m. d. 



