Technical and Scientific Publications 7 



Geological and Topographical Maps : their 



Uses for the Geologist and Civil Engineer. By A. R. DWERRYHOUSE, 

 D.Sc. , F.G.S., Lecturer in Geology at the Queen's University, Belfast. 



[In the Press. 



Modern Methods of Water Purification. By 



JOHN DON, A M.Inst.Mech.E., and JOHN CHISHOLM. 384 pages. 96 

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Practical Photo-micrography. By J. EDWIN 



BARNARD, F.R.M.S., Lecturer in Microscopy, King's College, London. 

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Wood. A Manual of the Natural History and 



Industrial Applications of the Timbers of Commerce. By G. S. 

 BOULGER, F.G.S., A.S.I., Professor of Botany and Lecturer on Forestry 

 in the City of London College. Second Edition, xi + 348 pages, with 48 

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A Class Book of Botany. By G. P. MUDGE, 



A.R.C.Sc., and A. J. MASLEN, .F.L.S. With over 200 Illustrations. 

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Elementary Botany. By E. DRABBLE, D.Sc., 



Lecturer on Botany at the Northern Polytechnic Institute. 234 pages, 

 with 76 Illustrations. Crown 8vo., cloth, 2s. 6d. 



The Development of British Forestry. By 



A. C. FORBES, F. H.A.S., Chief Forestry Inspector to the Department 

 of Agriculture for Ireland. Author of "English Estate Forestry," 

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English Estate Forestry. By A. C. FORBES, 



F.H.A.S. x + 332 pages, Illustrated. Demy 8vo., I2S. 6d. net (inland 

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House, Garden, and Field. A Collection of 



Short Nature Studies By L. C. MIALL, F.R.S.. late Professor of 

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Astronomical Discovery. By HERBERT HALL 



TURNER, D Sc., F.R.S., Savilian Professor of Astronomy in the 

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