Spera materialis sive tractatus circa speram materialem

Title:	Spera materialis sive tractatus circa speram materialem
Alternate title:	Manuscript collection of unattributed tracts on geometry, cosmology, and astronomy.
Alternate title:	Commentary on the Sphere of Johannes de Sacro Bosco
Alternate title:	Tractatus de quadrante
Note:	1275

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Subject:	Astronomy
Subject:	Astronomy -- Early works to 1800
Subject:	Divination
Subject:	Divination -- Early works to 1800
Subject:	Early works
Subject:	Geometry
Subject:	Geometry -- Early works to 1800
Subject:	Manuscripts, Latin
Subject:	Manuscripts, Latin -- Québec (Province) -- Montréal
Subject:	Québec -- Montréal
Subject:	Sacro Bosco, Joannes de, active 1230
Subject:	Vellum (Paper)
Other copies:	Look for editions of this book at your library, or elsewhere.