The letter of Petrus Peregrinus on the magnet, A.D.1269
- Author
- Petrus Peregrinus de Maharncuria,Pierre de Maricourt,Brother Arnold,Brother Potamian
- Publisher
- McGraw-Hill Book Company
- Language
- English
- Year
- 1904
- Page
- 78
- File Type
- pdf
- File Size
- 7.6 MiB
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