VOLCANOES : 



THEIR STRUCTURE AND SIGNIFICANCE. 



By T. Q. BONNEY, D.Sc, F.R.S., 



Emeritus Professor of Geology at University College, Lo7idon. 



Third (New and Enlarged) Edition. With numerous Illustrations. 

 6s. net. Just out. 



This edition has been tnlarged by succinct accounts of some interesting volcanic 

 eruptions which have occurred during the present century. The text generally 

 has been revised and considerable alterations have been made in the chapter 

 dealing with the causes, of which eruptions, and their more conspicuous 

 phenomena, are probably the consequences. 



JOHN MURRAY, Albemarle Street, W. 



Roy. 8vo. pp. 116. With 3 plates and large Coloured Zonal 

 Map. 1 Os. 6d. net. 



THE STRATIGRAPHY 



OF 



THE CHALK OF HANTS 



WITH MAP 

 AND PAL/EONTOLOGICAL NOTES. 



BY 



R. M. BRYDONE, F.G.S. 

 PAL>EONTOGRAPHICAL SOCIETY. 



Volume LXVI, 4to. Boards, or in separate parts. £1 5s. net. 



Parts may be had separately. 



1. BRITISH GRAPTOLITES. Part IX. By Miss Elles and Miss Wood. 



Edited by Prof. Lapworth. With 8 plates. 8s. net. 



2. THE CAMBRIAN TRILOBITES. Part IV. By Mr. P. Lake. With 



4 plates. 4s. net. 



3. THE CRETACEOUS LAMELLIBRANCHIA. Vol. II, Part IX. With 



Title-page and Index. By Mr. H. WOODS. With 8 plates and 12 whole- 

 page Text-figures. 8s. net. 



4. THE FOSSIL MALACOSTRACOUS CRUSTACEA. By Prof. T.Bell. 



Title-page and Index. Is. net. 



THE ZONES OF THE CHALK IN HANTS 



BY 



C. GRIFFITH, M.A., F.G.S., and R. M. BRYDONE, B.A., F.G.S. 



With Appendices by the Authors on Bourgueticrinus and 

 Echinocorys ; and by F. L. KiTCHEN, M.A., Ph.D., on a new 

 species of Thecidea. 8vo. 40 pp. 4 plates. Sewed. 2s. net. 



DULAU & CO., LTD., 37 SOHO SftUARE, LONDON, W. 



