On the strength of similar arrangements of lenses and mirrors the invention of the camera obscura has also been claimed for Leonard Digges, the author of Pantometria (1571), who is said to have constructed a telescope from information given in a book of Bacon's experiments.
Vast masses of Walsingham's correspondence are preserved in the Record Office and the British Museum; some have been epitomized in the Foreign Calendar (as far as 1582); and his correspondence during his two embassies to France was published in extenso by Sir Dudley Digges in 1655 under the title The Compleat Ambassador, possibly, as has been suggested by Dr Stahlin, to give a fillip to the similar policy then being pursued by Oliver Cromwell.
As early as 1573, Thomas Digges had suggested that this theory should necessitate a parallactic shifting of the stars, and, consequently, if such stellar parallaxes existed, then the Copernican theory would receive additional confirmation.
Its buildings, arranged around Under the Commonwealth Richard Bennett (elected by General Assembly)1652-1655Edward Digges (elected by House of Burgesses)1655-1657Samuel Mathews (elected by House of Bur gesses).1657-1660Under the Crown Sir William Berkeley, Governor.1660-1677Francis Morrison (or Moryson), Deputy Governor.
Thomas Digges, in his Stratioticus, p. 359, published in 1579, states that his father, Leonard Digges, "among other curious practices had a method of discovering by perspective glasses set at due angles all objects pretty far distant that the sun shone upon, which lay in the country round about," and that this was by the help of a manuscript book of Roger Bacon of Oxford, who he conceived was the only man besides his father who knew it.
Chap. 21) of Leonard Digges 1 (originally published by his son Thomas in 1571, and again in 1591): - "Marvellous are the conclusions that may be performed by glasses concave and convex, of circular and parabolic forms, using for multiplication of beams sometime the aid of glasses transparent, which, by fraction, should unite or dissipate the images or figures presented by the reflection of other."
Bennett and his Puritan successors, Edward Digges and Samuel Mathews, made no serious change in the administration of the colony except to extend greatly the elective franchise.
Hudson's confidence in the existence of a North-West Passage had not been diminished by his three failures, and a new company was formed to support him in a fourth attempt, the principal promoters being Sir Thomas Smith (or Smythe), Sir Dudley Digges and John (afterwards Sir John) Wolstenholme.