Tag Archives: Leiden University

Horizontal and Vertical Mountains

The research is taking me all over the place, quite literally: Thursday week presenting a talk for the International Conference on the History of Cartography in Amsterdam, then Tokyo the following day for the International Cartographic Conference (see Events for … Continue reading

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Chain of Custody

The earliest map visited on my travels is of a navigation channel for the Spaarne by Pieter Bruins, Bruinsz or Bruinszoon in 1584. The dotted line marked ‘7 voet’ probably denotes water ‘deeper than’ and as such I consider it … Continue reading

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Floods

Early morning radio: a man is watching water climbing the stairs. It’s not the first time he’s been flooded out and it will happen again as arguments for dredging and speeding flow versus slowing the onrush – via water meadow … Continue reading

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Making Connections: a line through history

Our Italian Marsigli has important friends; on Isaac Newton’s recommendation he had been elected a member of the Royal Society in 1691. In the 1720’s he visits London then travels on to the Netherlands where at Leiden he also met … Continue reading

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