| Description | Lectures entitled: 1 The Drift of the Continents?
 2 The History of the Earth's Magnetic Field
 3 Technology, and Science in the Past
 4 Technology, Science and Government Today
 
 Folder includes manuscript notes and drafts for lectures 3 and 4 (labelled by Blackett 1 and 2), and also notes for a version to be broadcast on New Zealand radio.
 
 Schedule and itinerary in New Zealand are included here.
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