The construction of the wonderful canon of logarithms

Mirabilis
Canonis
;
Eiusque
Catalogue. 143
appear to have at once set about the preparation of an edition for
issue at Lyons, and, as will be seen from the next entry, had some
copies printed with the date 1619 on the first title-page. The three
parts are usually found together, but some copies contain only the
Descriptio and Tabula. The Admonitio is omitted from the last page
(M22) of the Tabula, but in many copies its place is taken by the
"Extraict du Priuilege du Roy," at the end of which is printed
" Acheue dUmprimer le premier Odobre, mil six cents dixneuf." The
copies in the Advocates' Library, Edinburgh, and Astor Library, New
York, have this
Extraict on Mz^ of the Tabula, and have also on H4I
of the Constructio the Extraict reset with the note at end altered to
" Mirifici Logarithmorum Acheui d'imprimer le 31 Mars 1620."
The edition is a fairly correct reprint of the Edinburgh one, but the
decimal notation employed by Briggs in his Remarks on the Appendix
has not been understood, the line
placed by him under the fractional
part of a number to distinguish it from the integral part being
here printed under the whole number. The only intentional alteration,
besides the title-page, is in the Dedication to Prince Charles, where
" Francige " is omitted from his father's title, " magnm Britannix,
Francim,
&' Hibernia Regis"
Libraries. Adv. Ed.; Un. Ed.; Act. Ed.; Un. Gl. ; Un. St. And.; Brit.
Mus. Lon. (parts i and 2 only) ; Un. Col. Lon. ; Roy. See Lon. ; Kon.
Berlin ; Un. Breslau (parts i and 2 only) ; Kon. Off. Dresden ; K. Hof u.
Staats. Munchen ; Astor, New York ; Nat. Paris ; Un. Utrecht ; Stadt.
Zurich (parts i and 2 only)
Logarithmorvm Descriptio,
| |
Sev Arithmeticarvm
|
Svppvtationvm Abbreviatio. vsus
| |
Lvgdvni,
|
Apud
[Same as preceding.]
Barth. Vincentium.
|
M. DC. X I X. |
Cum
Priuilegio
Csesar. Majest. & Christ. Galliarum Regis.
|
[Printed in black and red.]
The only respect in which this entry differs from the preceding is in
the date on the title-page. A possible explanation of this may be that
the title-page was originally set up with the date m. dc. xix., but
S 4 when