14] VEGETATIONAL TYPES OF TROPICAL LANDS 471 



Further Consideration 



Although it is in the tropics that the most luxuriant and complicated 

 of all vegetation occurs, most of the pertinent literature is again tiresomely 

 scattered. For such subjects as it covers, however, this is happily- 

 remedied by the first book cited below ; the others are useful for further 

 details or vivid illustrations : 



P. W. Richards. The Tropical Rain Forest : an Ecological Study 

 (Cambridge University Press, Cambridge, Eng., pp. xviii + 450, 

 1952). Brings together the available knowledge concerning tropical 

 rain forests and related topics. See also the more general works of 

 Schimper, Faber, Hardy, Campbell, Tansley & Chipp, and Newbigin 

 cited at the end of Chapter XII. 



W. A. Cannon. Botanical Features of the Algerian Sahara (Carnegie 

 Institution, Washington, D.C., Publication No. 178, pp. vi -l gj and 

 36 plates, 1913). 



W. A. Cannon. General and Physiological Features of the Vegetation 

 of the more Arid Portions of Southern Africa, zvith Notes on the 

 Climatic Environment (Carnegie Institution, Washington, D.C., 

 Publication No. 354, pp. viii — 159 and 31 plates, 1924). 



J. S. Beard. The Natural Vegetation of Trinidad (Oxford Forestry 

 Memoirs, No. 20, Clarendon Press, Oxford, map and pp. vi -j- 7-152, 

 1946). 



G. M. Roseveare. The Grasslands of Latin America (Imperial Bureau 

 of Pastures and Field Crops, Aberystwyth, Bulletin No. 36, pp. 

 1-291, 1948). 



R. E. HoLTTUM. Plant Life in Malaya (Longmans, London etc., pp. 

 viii + 254, 1954). 



Concerning special tropical items or regions there are, in addition to 

 the works already cited, numerous and usually well-illustrated papers in 

 the Journal of Ecology, which has been published continuously since 1913, 

 and, almost always in German, in the 26 volumes of Vegetationsbilder 

 published between 1904 and 1944 and in the long series of monographs 

 edited by A. Engler & O, Drude and entitled Die Vegetation der Erde 

 (Engelmann, Leipzig, 1896 onwards). 



