Treatise on the Astrolabe

English: A Treatise on the Astrolabe is a medieval essay on the astrolabe by Geoffrey Chaucer

Italiano: Il Trattato sull'astrolabio è un saggio medioevale di Geoffrey Chaucer sull'astrolabio

The Treatise

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  A Treatise on the Astrolabe - pg. 397 of The works of Geoffery Chaucer

Chaucer's astrolabe

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  This is a representation of PLATE I of Chaucer's astrolabe
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  This is a representation of PLATE II of Chaucer's astrolabe
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  This is a representation of THE PLATE UNDER THE RETE of Chaucer's astrolabe
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  This is a representation of THE RETE or ZODIAK of Chaucer's astrolabe