MIRIFICI LOGARITHMOBUM CANONIS CONSTRUCTIO. L07 



garithmioa sive Logarithmoram Chiliades Triginta, pro numeris 

 naturali serie crescentibus ab imitate ad 20,000: et a 90,000 ad 

 100,000 *) uit, en was met de berekening van de Logarithmen der 

 ontbrekende getallen van 20000 tot 00000 bijna gereed '-), toen 

 in L628 bij Pieter Rammaseyn, „Bóekverkooper in de corte Groe- 

 nendal, int Vergnlt A1H'" te Gouda, als tweede vermeerderde druk 

 van zijn Arithmetics Logarithmica, bewerkt door den „konstlieven- 

 den" chef dier uitgeversfirma, Adriaen Vlack, de eerste volledige 

 tafel van dé gewone logarithmen der getallen van 1 tot 100000 3 ) 

 in tien decimalen verscheen. 



partim, vt quorundam suoviun necessariorum desiderio priuatim satisfaceret partim, vt 

 eius adiumento, non solum Chiliadas aliquot insequentes; sed etiam integrum Logarith- 

 morum Canonem, omnium Triangulorum calculo inseruientem commodius absolueret. 

 Habet enim Canonem Sinuum, à seipso, ante Decennium, per asquationes Algebraicas, 

 & differcutias, ipsis Sinubus proportionales, pro singulis Gradibus & graduü centesimis, 

 à primis funda/nentis accurate extnictù : quern vna cum Logaritlimis adjvnetis, volente 

 Deo, in lucem sedaturum sperat, quam prim urn commode licuerit. 



Quod autem lii Logarithmi, diversi sint ab ijs, quos Clarissimus inuentor, memoriae 

 semper coleiuhe, in suo edidit Canone Mirifico; sperandum, eius libn'i posthumum, abunde 

 nobis propediem satisfacturum. Qui autori (cum eum domi sua-, Edinburgi, bis inuisi sret, 

 & apud eum humanissime exceptas, per aliquot septimaiias libentissime mansisset ; eique 

 horum partem praecipuam quam tuin absoluerat ostendisset) suadere non destitit, vt 

 hunc in se laborem susciperet. Cui ille non inuitus morem gessit. 

 In teuui ; sed non tenuis fructusvc laborve." 



') Aritbmetica / Logarithmica / Sive / Logaritbmorvm / Chiliades Triginta, Pro 

 numeris naturali serie crescentibus ab vnitate ad / 20,000: et a 90,000 ad 100,000. 

 Quorum ope niulta / perficiuntur Aritbmetica problemata / et Geometrica. / Hos Nvmeros 

 Primvs / Invenit Clarissimvs Vir Iobaunes / Nepervs Baro Mcrcbistonij : cos autem ex 

 eiusdèm sententia / muta \ it, eoramque ortum et vsum illustravit Hcuricvs Briggivs, , 

 in celeberrima Academia Oxoniensi Geometriae / professor Savilianvs. / Devs Nobis 

 Vsvram Vitte Dedit / Et Ingenii, Tanqvam Pecvniae, / Nvlla Praestitvta Die. 



Londini, / Excudebat Gvlielmvs / [ones. 1624. / 2°. 394 pp. 



2 ) In een brief van den 25 ston October 1628 aan zijn vriend Peil zegt Briggs: „My 

 desire was to hare those Chiliades that are wantinge betwixt 20 and 90 calculated and 

 printed, and I bad done tbem all almost by my selfe, and by some frendes whom my 

 rules bad sufficiently informed, and by agreement the busines was conveniently parted 

 amongst us; but I am eased of that charge and care by one Adrian Vlacque, an Hollander, 

 who bathe doue all the whole hundred chiliades and printed them in Latin, Dud lie. 

 and Frenche, 1000 bookes in these ;5 languages, and bathe sonld them almost all. But 

 he bathe cutt of 4 of my figures throughout; ami bathe left out my Dedication, and 

 to the reader, and two chapters the 12 and 13, in the rest he bathe not varied from 

 me at all." 



Glaisher, On Early Logarithmic Tables, and their Calculators, in: Philo- 

 sophical Magazine, London 1ST.'!, Vol. XLV, p. 380. 



: ) Arithmetics / Logarithmica. / Sive / Logarithmorvm / Chiliades Centrai, Pro / 

 Numeris naturali serie crescentibus / ab Vnitate ad 100000. Vna Cvm / Canone Tri- 

 angvlorvm / Sev Tabvla Artificialivm / Sinuum, Tangentium & Secantium, | Ad Radium 

 1.0,00000,00000. & ad singula / Scrupula Prima Quadrantis. / Qvibvs Nbvvm Traditvr 

 Compendivm Qvo Nvl- / lum nee admirabilius, nee utilius solvendi pleraque Proble- 

 mata Aritbmetica & Geometrica. / Dos Nvmeros Primvs [nvenit Clarissimus Vir 



