A
DISCOURSE
PRESENTED
TO THE MOST SERENE
Don Cosimo II.
GREAT DUKE
OF
TUSCANY,
CONCERNING
The NATATION of BODIES Vpon,
And SUBMERSION In,
THE
WATER.

By GALILEUS GALILEI: Philosopher and
Mathematician, unto His most Serene Highnesse.

Englished from the Second Edition of the ITALIAN,
compared with the Manuscript Copies, and reduced
into PROPOSITIONS:
By THOMAS SALUSBURY, Esque

LONDON:
Printed by WILLIAM LEYBOURN:
M D C LXIII.