Congo and Ruanda Burundi. (1955). Carte Géologique du Congo Belge et du Ruanda-Urundi. Liège: Royaume de Belgique Coalfields Memoirs Covers from capital Sofia to

Covers from capital Sofia to SE to Black Sea coast at Burgas then northward to Varna then inland back to Sofia

dark blue cloth-covered boards with gilt lettering on spine

Entire issue on the History of Geology in UK

6” (1935)

Congo and Ruanda Burundi. (1955). Carte Géologique du Congo Belge et du Ruanda-Urundi. Liège: Royaume de Belgique Coalfields Memoirs Covers from capital Sofia toCongo and Ruanda Burundi. (1955). Carte Gologique du Congo Belge et du Ruanda Urundi. Lige: Royaume de Belgique, Ministre des Colonies. Four quarter folded sheets, each 70 x 72. 5 cm folding to 30 x 21 cm, colour lithographs, 1: 2,000,000 scale. Together with Notice Explicative de la Carte dEnsemble, 4pp., Lgende Gnrale, 4th edition, 40 pp., and Lgende Gnrale, Additions et Modifications, 4th edition All fitting into accompanying envelope. All maps in