TWO IMPORTANT BOOKS. 



The Building of the Alps. 



BY 



T. G. BONNE Y, Sc.D., LL.D., F.R.S.; 



Emeritus Professor of Geolooil, University CoUege. London ; Past President of the 

 Alpine Cluh, the Geological Society, and the British Association. 



With 48 Illustrations. Demy 8vo, cloth. (Second Impression.) 



12s. 6d. net. 



' ' The result of all this learning and experience is a book of absorbing interest 

 to anyone who passes a summer or a winter season in the Alpine region and 

 wishes to make use of his eyes or his imagination. . . . Whatever Dr. Bonney's 

 attainments as a geologist, he adds to them the power of writing a language 

 which can be understood by those who are not geologists." — Times. 



" It is not simply a technical treatise, but a vivid, picturesque, and fascinating 

 account of the life history of the Alps." — The Field. 



Hampstead Heath: 



Its Geology and Natural History. 



BY 



MEMBERS of the HAMPSTEAD SCIENTIFIC SOCIETY. 



With a Coloured Frontispiece, Maps, and other Illustrations. 

 Demy Bvo, cloth. 10s. 6d. net. 



The Natural History Section of the Hampstead Scientific Society has for 

 many years been exploring the district. This work contains chapters on bird 

 life, plant life, and pond life ; on mammals, molluscs, and insects. Mr. F. W. 

 Eudler discusses the geology of the area, which for London is of peculiar 

 interest ; the general features of the Heath are described in a topographical 

 section, together with so much of its history as affects or explains its ptesent 

 aspect ; and there is an account of local meteorology, based partly on the 

 records of the Society's own observatory and partly on such previous records as 

 are available. Although the book is written in a clear and popular style, it is 

 at the same time a careful and accurate scientific survey of the district. 



T. FISHER UNWIN, 1 Adelphi Terrace, London. 



