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THE
Celeſtial Worlds
DISCOVER’D:
OR,
CONJECTURES
Concerning the
INHABITANTS,
Plants and Productions
of the
Worlds in the Planets.
Written in Latin by
CHRISTIANUS HUYGENS,
And inſrib’d to his Brother
CONSTANTINE HUYGENS
Late Secretary to his Majeſty King William.
The Second Edition, Corrected and Enlarged.
L O N D O N :
Printed for James Knapton, at the Crown in
St. Paul’s Church-Yard. Mdccxxii.