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The Letter of Petrus Peregrinus on the Magnet, A.D. 1269
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Notes
Notes to The Letter of Petrus Peregrinus on the Magnet, A.D. 1269 — Brother Arnold translation
6 notes · Brother Arnold translation
INTRODUCTORY · Note 1
INTRODUCTORY · Note 2
INTRODUCTORY · Note 3
PART II CHAPTER I THE CONSTRUCTION OF AN INSTRUMENT FOR MEASURING THE AZIMUTH OF THE SUN THE MOON OR ANY STAR ON THE HORIZON · Note 1
NOTES · Note 1
NOTES · Note 2
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