A handsome example of the second English translation of Galileo's last work; the first translation appeared in Thomas Salusbury's 1665 Mathematical Collections, which was largely lost in the 1666 Great Fire of London. Even in the early 18th-century the Salusbury translation was scarce enough that Weston saw fit to redo it; today, the 1665 translation is known in not more than ten examples:
These Select Pieces of our Excellent Author were, many Years ago, publish'd in an Englihs Dress by Mr. Salusbury, in the second Tome of his Mathematical Collections and Translation; which is now become very scarce: Whereupon a new Translation of them being much desired and promoted... In Consequence whereof I now make publick a Second Translation (done from the Elzevir Edition of the Italian); and, as it is meerly such, I conceive there need nothing more be added on my Part. - "The Translator's Preface", page v
Thomas Weston (died 1728), who had been Flamsteed's assistant, translated this edition and later founded a mathematical school in Greenwich.
London: printed for J. Hooke, at the Flower-de-Luce, over-against St. Dunstan's Church in Fleet-Street, M.DCC.XXX. [1730]
Pagination: xi, [1], 360, 369-436, [single-page engraved table, verso blank], 437-497, [3, errata and ads] pages. Complete.