98 Quarterly Journal of Conchology. 



BIBLIOGRAPHY. 



Woodward's Manual, Third Edition. 



"A Manual of the Mollusca, being a treatise on recent and 

 Fossil Shells; By S. P. Woodward, A.L.S., F.G.S.; Third Edition, 

 with an appendix of recent and fossil conchological discoveries ; 

 By Professor Ralph Tate, A.L.S., F.G.S.; Illustrated by Miss A. 

 N. Waterhouse and J. W. Lo\vr}' ; London, Lockwood & Co., 1875, 

 Price 7/6; pp. 542 and 86, with 24 plates and numerous woodcuts. 



The fact that the Third Edition of this standard work now lies 

 before us shows that it is suited to the wants of students in con- 

 chological science by providing for them a brief, terse, and com- 

 pendious summary of our knowledge in this branch of science. 



As this is the first occasion the work has come before us in our 

 editorial capacity, we will give a brief sketch of its contents. 



The first chapter discusses the position held by the Mollusca in 

 the Animal Kingdom, and the affinities existing between each group. 



The internal classification, so to speak, of the moUusks them- 

 selves, and the mutual inter-arrangement of the principal tribes, 

 illustrated by diagrams, is next considered. Under the head of 

 Habits and Economy is accumulated a large amount of interesting 

 and useful information, the structure and physiology of the mollusca 

 follows, each of the anatomical systems being examined in detail. 



The structure and growth of the shell, as a most important part 

 ofamoUusk, receives special attention, and is illustrated by diagram- 

 iriatic sections. Under the heading of classification we meet with 

 the author's views upon the subjects of affinities, analogies, species, 

 genera, families and the higher terms of classification. 



The second chapter treats upon the geographical distribution of 

 the mollusca, and is illustrated by a map showing the various mol- 

 luscan provinces adopted by the author, which seem to have been 

 founded upon the labors of botanists. The more philosophical 

 arrangement of the world's surface into zoological regions propound- 

 ed by Dr. Sclater in 1857 is briefly mentioned at the commence- 

 ment, but is not in any way made the basis of the author's scheme. 



The marine provinces are next described, the peculiarities of each 

 being mentioned, also the species peculiar to it, and the affinities 

 the province bears to others; a large amount of valuable information 

 as to the range of the Mollusca is here collected together, and what- 

 ever difference of opinion may exist, as to the correctness of the 

 author's division of the earth's surface, the whole chapter cannot 

 fail to command the attention of the student of geographical dis- 

 tribution. 



