Mr. Edward Arnold’s Autumn Announcements. Bae) 
ARNOLD'S GEOLOGICAL SERIES. 
General Editor: DR. J. E. MARR, F.R.S. 
THE GEOLOGY OF WATER-SUPPLY 
By HORACE B. WOODWARD, F.RS., F.G.S. 
320 pp. Crown 8v0., cloth. 7s. 6d. net. 
A full account of the geological water-bearing strata, especially 
in reference to Great Britain, and of all the various sources—wells, 
springs, streams, and rivers—from which water-supplies are drawn. 
The influence of the rainfall, percolation, evaporation from the soil 
and by vegetation, as well as other allied subjects, are discussed. 
THE GEOLOGY OF BUILDING STONES. 
By J. ALLEN HOWE, B.Sc., 
Curator oF THE Museum oF Practicat GEOoLoGy. 
Crown 8vo., cloth. 7s. 6d. net. 
Since the appearance of Professor Hull's treatise in 1872, no 
single book has been brought out in this country dealing exclusively 
with the Geology of Building Stones. Many valuable papers have 
been written on special branches, and lists of building stones, etc., 
have been incorporated in the standard works upon building con- 
struction, but in few of these has the geological aspect been developed 
so as to link up the facts concerning the occurrence, physical 
properties, and resistance to wear of the natural materials as they 
exhibit themselves to a geologist. 
In the present volume the author has especially studied the 
requirements of architects in Great Britain, so that it should prove 
not only a useful guide for the student, but also a reliable and 
handy book of reference for the practising architect. Although 
building stones occupy the bulk of the space, most of the points 
where geology and architecture meet are shortly touched upon. 
A TEXT-BOOK OF GEOLOGY 
By PHILIP LAKE, M.A., F.G.S., 
Rovat GeocrarnicaL Sociery Lecrurer in REGIONAL AND PuysICAL GEOGRAPHY 
IN THE UNIVERSITY OF CAMBRIDGE; 
And R. H. RASTALL, M.A., F.G.S., 
FELLow oF Curist’s CoLLEGE, CAMBRIDGE; DEMONSTRATOR IN GEOLOGY IN THE 
UNIVERSITY OF CAMBRIDGE. 
Illustvated. Demy 8vo. 16s. net. 
The authors here give within moderate compass a complete 
treatise suitable alike for the student and for all who desire to 
become acquainted with Geology on modern lines. The first part 
of the book deals more particularly with Physical Geology—that is, 
the study of the earth as i exists to-day, the moulding processes 
which we can now see at work, and the land and water formations 
which thence result. The second part deals with Stratigraphical 
Geology, or the unravelling of the earth’s previous history, the 
stratigraphy of the British Isles being considered in detail. 
