The Naturalist, edited by W. D. Roebuck, F.L.S., and W. E. Clarke, F.L.S., 



Jan.— April [The Editors. 



The American Naturalist, Jan., Feb. [The Editor. 



The Scottish Naturalist, Jan.— April [The Editor 



Science, Nos. loi— 114. [The Editor. 



Zoologischer Anzeiger, herausgegeben von Prof. Carus, Nos. 185 — 188 [The Editor. 



Om Limfjordens tidligere og nuvserende Marine Fauna med sserligt hensyn til 



Bloddyrfaunaen ved Jonas Collin [The Author. 



On the Concordance of the Mollusca inhabiting both sides of the N. Atlantic and 



the Intermediate Seas, by J. Gwyn Jeffrys, LL.D., F.R.S., &c. [The Author. 



Journal of the Cincinnati Society of Natural History, Jan., 1885 [The Society. 



Manual of Conchology, part 25 [The Editor. 



Descriptive Sketch of the Physical Geography and Geology of the Dominion of 

 Canada, by A. R. C. Selwyn, LL.D., F.R.S., &c., and G. M. Dawson, 

 D.S., F.G.S. [The Canadian Survey. 



Comparative Vocabularies of the Indian Tribes of British Columbia, with map, 



by W. F. Tolmie and G. M. Dawson. D.S., F.G.S. [The Canadian Survey. 



Bericht iiber die Senckenbergische Naturforschendc Gesellschaft, 1884 [The Society. 



Nature, No. 791 [Rev. Dr. Norman, F.R.S. 



Jahrbucher der deutschen Malakozoologischen Gesellschaft, Jan. 1885 [Dr. Kobelt. 



Transactions of the Hertfordshire Natural History Society and Field Club, vol. iii. 



parts 3 and 4, edited by J. Hopkinson, F.L.S., F.G.S. [The Society. 



Leopoldina, edited by Dr. Knoblauch, Heft xx., Nos. 23 and 24 [The Society. 



Proceedings of the Boston Society of Natural History, vol. xxii. parts 2 and 3 



[The Society. 



The Collector's Manual of British Land and Freshwater Shells, by L. E. Adams, 



B.A. [The Publisher. 



Science Gossip, Jan.— April [The Editor. 



Critical List of Mollusca from North-west Coast of Australia ; Habitat of Cypsea 

 citrina of Gray ; A List of Cyprseidae found on the Victorian Coast, collected 

 by Mr. J. F. Bailey ; Notes on Bulimus Gunni ; Synonymy of Australian 

 and Polynesian Land and Marine Mollusca ; Remarks on some Fluviatile 

 Shells of New South Wales ;— by J. Brazier, C.M.Z.S., &c. [The Author. 



STRUCTURAL AND SYSTEMATIC CONCHOLOGY : 



AN INTRODUCTION TO THE STUDY OF THE MOLLUSCA, 



By GEORGE W. TRYON, Jun., 



Conservator of the Conchological Section of the Academy of Natural Sciences of Philadelphia. 



Includes the Anatomy and Physiology of the Mollusca, their Geographical and 

 Geological Distribution, Hints for Collecting and Preserving Specimens, Nomencla- 

 ture and Classification, followed by succinct accounts of all the Recent and Fossil 

 Genera and Subordinate Groups, and two Indices. 



It comprises, in three octavo volumes, about 1,200 pages, illustrated by 140 

 plates, containing over 3,500 figures, and a map ; forming the most complete 

 Conchological Text Book ever published. 



Fine Edition, duplicate plates, coloured and tinted, $45.00. Coloured Edition, 

 $33.00. Uncoloured Edition, $20.00. Cheap Edition, three volumes bound in 

 one, thin paper, $12.00. 



Address :— Geo. W. Tyron, Jun., Academy of Natural Sciences, Philadelphia, 

 U.S.A., or Trubner & Co., 57 & 59, Ludgate Hill, London, England. 



THE SCOTTISH NATURALIST, 



A QUARTERLY MAGAZINE OF NATURAL SCIENCE. 

 Edited by Professor Trail, Aberdeen. 

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