Digitized by Boston Photo Imaging April 2013.
T.p. is a cancel.
Errata at the end.
Plate xvi is bound in out of order at p. 163 instead of at p. 146, and plate xxiv at p. 183 instead of at p. 175.
Includes an initial imprimatur leaf by the Council of the Royal Society of London: "Ordered, that the book ... Be printed by John Martyn, and James Allestry, Printers to the said Society. Novem. 23. 1664."
This is probably the same ed. as the Allestry printing (Wing H2621A) with new t.p. (Allestry and Martyn were partners).
Observ. 6. Of glass-canes (p. 10) --
Observ. 7. Of glass drops (p. 33-44) --
Observ. 9. Of fantastical colours: The texture of Muscovy glass; its figures: what other bodies are like it (p. 48) --
... producing all kinds of colours with two flat plates of glass ... blowing glass so thin in the lamp, till it produce the same effect (p. 50-51) --
... what seems most likely to be the cause of colour : that propriety is indeavoured to be shewn in a glass ball ... (p. 62) --
... Whether this principle may not be made use of, for perfecting optick glasses? What might be hoped from it if it were to be done? (p. 233) --
... the longer the glasses are, and the bigger apertures they will indure, the more fit they are for these discoveries : that tis probable, longer glasses would yet make greater discoveries (p. 241).