A bibliography of English military books up to 1642 and of ...
A bibliography of English military books up to 1642 and of ...
A bibliography of English military books up to 1642 and of ...
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—<br />
Collation. Tp., -fi, has coloured woodcut.—Arms <strong>of</strong> Bacon, -f ij.<br />
Ded. <strong>to</strong> Sir Nicholas Bacon, +2 <strong>and</strong> Ai.—Pref., Ai2-4.~Arms <strong>of</strong> Digges,<br />
liz.—Col.: "Imprinted at London by Henrie Bynneman, dwelling in<br />
Knightriders streat, at the signe <strong>of</strong> the Mermaid. Anno Domini. 1571."<br />
with device, \\2^.—Diags. <strong>and</strong> ills.—R.H., varied.—No pag.—Sigs. in 4%<br />
+ (2 fF.), A-Z, Aa-li2.<br />
Copies, B.M. i own copy.<br />
Second Edition.<br />
Fifteen-ninety-one.<br />
A Geometrical Pra6tical<br />
|<br />
Treatize Named Pan<strong>to</strong>metria,<br />
|<br />
* , , At London \<br />
Printed by Abell Jeffes, |<br />
Anno. 1591.<br />
|<br />
Folio.<br />
Collation, Ai, blank.— Tp., A2.—Arms <strong>of</strong> Bacon, A22.—Ded., A3.<br />
Pref., A32-A4.—Arms <strong>of</strong> Digges, Cc3j.—Err., Cc4.—Diags. <strong>and</strong> ills.<br />
Sigs. in 4% A-Z, Aa-Cc.<br />
Copies. B.M. (two).<br />
Contents. Bk. I., '* Longimetra," is on Topography. There is a full<br />
explanation <strong>of</strong> the construdtion <strong>and</strong> use <strong>of</strong> the gunner's quadrant, <strong>and</strong> <strong>of</strong> the<br />
theodolite, which is praftically the same as the " cosmodolite " <strong>of</strong> Nor<strong>to</strong>n.<br />
On the derivation <strong>of</strong> the word " theodolite " see De Morgan (" Arithmetical<br />
Books," p. 24).<br />
The 2nd impression, besides an addition <strong>of</strong> fifty "Theorems concerning<br />
the new Science <strong>of</strong> great Ordnance, resolving the greater part <strong>of</strong> the Artillery<br />
Questions in the ' Stratioticos,' " has a s<strong>up</strong>plement consisting <strong>of</strong> forty<br />
" Diffinitions, taken out <strong>of</strong> my [first <strong>and</strong>] third Book <strong>of</strong> Pyrotechnie Militarie,<br />
<strong>and</strong> great Artillerie j"<br />
the other treatise<br />
<strong>and</strong> twelve ** Geometrical Problems for underst<strong>and</strong>ing<br />
<strong>of</strong> Architedhu-e Military <strong>and</strong> Nautical <strong>and</strong> great Artillery."<br />
(V. No. 25 for these unpublished works.) Thomas Digges, who was not a<br />
gunner, adopted a nomenclature <strong>of</strong> his own, which Nor<strong>to</strong>n, in his "Art <strong>of</strong><br />
Great Artillery," London, 1624, translates in<strong>to</strong> the technical terms used in<br />
gunnery. Thomas speaks in the Pref. <strong>of</strong> Leonard's invention <strong>of</strong>* Proportional<br />
Glasses," by means <strong>of</strong> which one could see what was being done at a distance<br />
<strong>of</strong> seven miles, <strong>and</strong> could fire powder <strong>and</strong> discharge ordnance at a distance <strong>of</strong><br />
half a mile <strong>and</strong> more.<br />
In the " Stratioticos " (p. 359, ed. 1590), he says that<br />
it was partly an "old written book" <strong>of</strong> Roger Bacon's experiments that<br />
suggested the idea <strong>of</strong> these glasses <strong>to</strong> his father, alluding, no doubt, <strong>to</strong> the<br />
" Mirror <strong>of</strong> Alchemy," written in Latin about the middle <strong>of</strong> the thirteenth<br />
century, <strong>and</strong> printed in 1541,^ which contains several passages relating <strong>to</strong><br />
perspective glasses for <strong>military</strong> purposes, <strong>and</strong> <strong>to</strong> gunpowder.<br />
" Leonard Digges, the father <strong>of</strong> Thomas, was famous for his mathematical<br />
^<br />
<strong>English</strong> trans., London, 1595, 4°.<br />
15