378 INTRODUCTION TO PLANT GEOGRAPHY [CHAP, 



places, further details about most of the subjects treated may with 

 advantage be obtained from the standard general works dealing with the 

 vegetation of the land-masses of the world. These include : 



A. F. W. ScHiMPER. Plant-geography upon a Physiological Basis, transl. 



and revised edition (Clarendon Press, Oxford, pp. xxx -f 839 and 4 



additional maps, 1903). See also the ' third ' German edition revised 



by F. C. von Faber and cited on p. 23. 

 M. E. Hardy. A Junior Plant Geography (Clarendon Press, Oxford, 



pp. 1-192, 1913). 

 M. E. Hardy. The Geography of Plants (Clarendon Press, Oxford, pp. 



xii + 327, 1920). 

 D. H. Campbell. An Outline of Plant Geography (Macmillan, London 



(and New York), pp. ix + 392, 1926). 

 A. G. Tansley & T. F. Chipp. Aims and Methods in the Study of 



Vegetation (Crown Agents for the Colonies, London, pp. xvi -J- 383, 



1926). 

 M. L Newbigin. Plant and Animal Geography (Methuen, London, pp. 



XV + 298, 1936). 



Concerning pertinent ecological principles, and for some local examples, 

 see the works of Tansley, Leach, Weaver & Clements, and Oosting, cited 

 at the end of Chapter X. 



Treatment of the vegetation of different regions is extremely ' patchy ', 

 even in the most populous of the temperate and allied lands as they were 

 considered in the present chapter. Thus whereas on many areas there 

 is an extensive literature, including numerous accounts prepared by 

 trained and accomplished observers, on others there is very little. The 

 total, however, is vast but scattered. Particularly have many valuable 

 and often well-illustrated accounts appeared in the British Journal of 

 Ecology, which has been published continuously since 1913. Others have 

 appeared from time to time in the American journal Ecology, which has 

 been published regularly since 1920, in the companion Ecological Mono- 

 graphs, of which a volume has appeared each year since its institution in 

 1 93 1, and in the German Vegetationsbilder, of which 26 volumes were 

 published during 1904-44. Further accounts are appearing in the more 

 recently founded international journal Vegetatio (Junk, Den Haag, 1948-). 

 Many of the pertinent papers are cited in S. F. Blake & A. C. Atvvood's 

 Geographical Guide to Floras of the World {see p. 214). 



A model of the kind of work which is desirable for each and every 

 region is Sir A. G. Tansley's monumental The British Isles and Their 

 Vegetation (Cambridge University Press, Cambridge, Eng., pp. xxxviii 

 -f 930, 1939), of which a new edition in two handier volumes is now 

 available. Examples of useful books on other, mainly temperate, lands 

 include L. S. Berg's Natural Regions of the U.S.S.R. (Macmillan, New 



