{109} BIBLIOGRAPHICAL NOTES Among the most important general reference works one must mention the chief encyclopaedias, Reclus's _Géographie universelle_ (also in English), the _International Geography_, the _Dictionnaire de Géographie universelle_ (V. de S. Martin). Ratzel's _Anthropogeographie_ and Brunhes's _La Géographie humaine_ and _Géographie humaine de la France_ should also be mentioned here. Bowman, _The New World_, has a fine collection of maps relating to the political resettlement of Europe. On Race Questions the standard book is W. Z. Ripley's famous work, _The Races of Europe_, supplemented by G. Sergi's _Europa_ in Italian and by a number of papers by Keith, Parsons, Peake, Fleure, and others in the _Journal of the Royal Anthropological Institute_ during the last ten years. Dr. Haddon and Mrs. Quiggin have issued a valuable revision of Keane's _Man, Past and Present_. Déchelette's _Archéologie_ is the standard work in its field and may be supplemented from Burkitt's _Prehistory_ and Macalister's _Archaeology_. On Languages and their Distribution the student may begin by consulting A. Meillet's _Les Langues dans l'Europe nouvelle_ and L. Dominian on _Frontiers of Language and Nationality in Europe_. From these books a bibliography can be compiled to suit the student's purpose. The evolution of social conditions in Europe is so complex that it has not as yet received synthetic treatment, but some tentative efforts are useful if read critically. Among them one may note the files of _La Science sociale_ and Demolins's _Comment la route crée le type social_, Guizot's _Histoire de la Civilisation en Europe_, Kropotkin's _Mutual Aid_, his _Fields, Factories, and Workshops_, and his _Memoirs of a Revolutionist_, as well as Jenks's works, such as the little _History of Politics_, and Geddes's _Cities in Evolution_. It is impossible to give an adequate list of books on special regions, but the following will be found of value for various parts of the Continent involved in the recent treaties: P. Vidal de la Blache, _Tableau de la Géographie de la France_; P. Vidal de la Blache, _La France de l'Est_; R. Blanchard, _La Flandre_; H. J. Mackinder, _The Rhine_; _Atlas de Finlande_; P. Leroy Beaulieu, _The Empire of the Tsars_; A. B. Boswell, _Poland and the Poles_; J. Cvijic, _La Péninsule balkanique_; M. I. Newbigin, _Geographical Aspects of Balkan Problems_; M. E. Durham, {110} _The Burden of the Balkans_; E. de Martonne, _La Valachie_; A. Philippson, _Das Mittelmeergebiet_; D. G. Hogarth, _The Nearer East_. Further guidance to books on regions of Europe will be found in the valuable handbooks issued by the British Government in two series, i.e. the handbooks issued by the Intelligence Department of the Admiralty, and the handbooks issued by the Historical Section of the Foreign Office.