Digital versions of all five books a versions, at just £5 each. Please click on the link to buy the digital download book payment has been made you will receive an email in confirmation of your order and a download link to your chosen book,

"Perpetual Motion: An Ancient Mystery Solved?" DIGITAL. (2.83MB) £5 to download click on the adjacent link
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"Maschinen Tractate" DIGITAL (53.27MB) £5 to download click on the adjacent button
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 "Apologia Poetica" DIGITAL ( 3.85MB) £5 to download click on the adjacent link
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"Das Triumphirende" DIGITAL (32.49MB) £5 to download click on the adjacent link
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"Grundlicher Bericht" DIGITAL (6.74MB)£5 to download click on the adjacent link
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Copyright © 2011 John Collins
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