The New Zealand Railways Magazine, Volume 5, Issue 6 (October 1, 1930)
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Britain has always been a leader in the field of suburban railway electrification. At the present time there are being undertaken extensive enlargements of the various railway suburban electric systems in the Homeland and the important main line electrification between London and Brighton. Interesting particulars of these new railway works are given in his present contribution, by our Special London Correspondent.