Keywords: Time measurements - DS Catalog Search Results

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1. University of Pennsylvania, LJS 216

Title:: Sphaera mundi
Author:: Johannes de Sacrobosco
Place:: Paris
Date:: [between 1256 and 1270]

2. University of Pennsylvania, LJS 487

Title:: Treatises on astronomical instruments
Place:: France
Date:: [between 1500 and 1599]

3. Princeton University, Islamic Manuscripts Garrett no. 255B

Title:: Arabic texts