Map composed by the geographers Percy Silva and Kusuma Gunawardena in consultation with Michael Roberts …. and presented on page 329 of the book People Inbetween. The Burghers and the Middle Class in the Transformatrions witihin Sri Lanka, 1790s-1960s, Ratmalana, Sarvodaya Publishers, 1989, p. 325. The Map depicts migration flows.
This map should be supplemented by an assessment of the map ddepicting the major roads and the railway network in 1946 that is provided by Ananda Wickremaratne in his excellent study: “The Development of Transportation in Ceylon, c.1800-1947,” — being a chapter in Kingsley M de Silva, HIStory of Ceylon, Vol. III, Colombo , University of Ceylon Press Board, 1973, pp 303-16.
K. Dharmasena: The Port of Colombo 1860-1939, Colombo, 1989.
K. Dharmasena: “Colombo: Gateway and Oceanic Hub of Shipping,” in Frank Broeze (ed.) Brides of the Sea. Port Cities of Asia from the 16th -20th Centuries, NSW University Press, 1989, pp 152-72.
Michael Roberts: “Te Two Faces of the Port City: Colombo in Modern Times,” in Frank Broeze (ed.) Brides of the Sea. Port Cities of Asia from the 16th -20th Centuries, NSW University Press, 1989, pp 173-87.