Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. -
Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.90.
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The machine reads it as
- buc a very (inall Distance From cach other:
- To find any Number of mean Proportionals bermixt Then imagine a Curre Line deawn chrougt
- any tuo Numbers.
- all che Extremities oE chese parallel Lines, 25
- eou deha, and chis is called the Lozarith-
- Fake the Disserence oF the Locarithms OF che micat Line
- trvo giren Numbers, which diride by a Tum-
- IF chis Figure vere drann on a verr larse
- ber more by one than che Numbex OF MeanS Table, and ith all requisire Exactnels, cactr
- desired; and chis Logarichmick Ouorient added Part, AB, BC, (9c. mighe be divided nOL
- torhe Locarithm of che least, gires the Locarichm
- OnlY InEO An 1OO OF 1OOO, BUIE CVeN InEO 10000,
- ot che first mean nexr ic; and chen added ro che 100000 equal Parts, and more. So haL AB
- last Sum, Ands the nexF, (9C.
- beins 10000O, AC ould bC 200000; AD
- As suppose ic vere required t0 sind 3 mean 300000, 9c. as must alwars be in an Arictne.
- Proxortionals berween 4 and 64; che Lozarithm rick PFOSreNION.
- OF 4, 150. 602060; 0f 64, i5 1. 806180; Their
- TheLine Pe beins supposed eo contain 10000
- Difference, r. 204+20, dirided by 4, (1. c. 3-] 1) Parrs, lec us imagine chrough cach ot chole Di-
- sires 0.301030; Which added eo che Locarithm visions a Parallel co be drann eo che Line AP
- OF 4, makes 0. 903090, the Losarithm oE B, che currins che Curre in (0 many Points, v. gr. let
- first mean; and again, added co rhe last Sum, the Line io be dravn chrough the Dirision 9900
- Sires T. 204120, the Losarithm oF 16; and 2- oE the Line Fe, and wrhich curs che Curre in
- Bain added, sires che Losarithm oF 32: Which che Point o. Let chere be allo supposed. the
- are the threc Means berwixt 4 and 64.
- Parallel O0, cuttins the Line A P. in che Divi-
- TOGARTTEMICK-Line of Pardie, iS a Sion 399563: Then any one may Hnon thaE
- Curre which discorers perfectiy all the Myste
- ries of the Locarithms, wich sereral orher very
- 399563 is che Lozarithm oF che Number 9900.
- In like manner, if S u passed chroush che Divi
- excellent Properries and Vses; and is thus deli- sion 9000 oF the Line Fe, the Line Vu Were
- neaced.
- drann curtins AF. in 395424, then vould haE
- Tet the Righr Line AP be dirided into the Line u V bC The Locarithm OF 900O, COC.
- equat ParS AB, BC; CD, DF, C9C. From tnC
- Sochac by chis means a Table ot Losarithms
- Points A, B, C, D, P, (90. Let che Lines A a, From + t0 20000 may casili be made; and Far-
- Bb, Cc, D d, and P e, be drann all perpen- cher, by producins the Line AP
- dicular 10 AF, and consequemis parallel r0 onc
- another:
- Note, T0 obtain aIl the LOsarithusS FFOM L 1O
- 10000, twill be enough to seck the Locarithms
- From 1000 10 10000; that is Charins drann
- che Parallel d+) 10 cake ehe Lozarirhms oF all
- che Dirisions From +toe; which Locarithms are
- aI concaincd between F and D: For by this vou
- Wvill have the Locarithms OF aII the Parrs thaL
- are between s and F, and whole Locarithms lic
- berreen D and A. For Fxample: Since O0 is
- 9900 Parrs, and ies Logarithm 399563, the Pame
- Number may be caken For che Losarithm oF 990.
- wrhichis NVn; 25 alto oE che Number Xy 99
- chanoino onty the Ars Figure 3. Becaule, ac
- cordins ro che Composicion oF chis Linc, OP
- Or TY y oustc e0 bc equal 1O F D OFD C; 25
- anr one mas casils prore. S0 chat O N OrN)
- will contain 100000; and because A O id
- 399563, Tubstractins ON 100000, there wilt
- rest 199563 FOr Ay. And after che same man-
- ner, havins Ay 395424 For the Locarithm ol
- Vu, irhich is9000; rou mar have al(0 09542
- Cor che Losarithm of X x, Which is 9: O
- 195424 FOr thC Locarithm OF 90; OF 295424
- FOT ehe Locarithm Ot900.
- HI this may be reduced co Practice FOr C al
- uotrac ve have here explained, is susticient ro sain
- Let each oF the equal ParIS, E D, DC, CB,ihe KnoWledse oF che Nature and Composition
- Tho inaced chere will noc arise Cuch Adran
- between
- And let them all be in a Geometrical Progrel-
- FOn : 25, let A a bC L, Bb 1O, CC1OO, D d
- 1003, F e 20000, (90. Then Mall wre havecvo
- Prosrestions oF Lines, Arichmerical and Ceome- cularion, writhout actually dramins chese Fi
- in Arichmerical Progression, Ox 25 1, 2, 3, 4,5, (90. For by che Rules oF common Arichmerick, we
- and (o do represent the Locarithms, to Which may find out FF, the mean Proporrional BerWeer
- correspond
- E9c. be dirided equally again in F, C, HI; and ot ihe Locarithms.
- dec the ParallelS Ff, C 5, (c. bC drawn, and
- De Mean Proxortionals Berween the Collaterat cage For makino Lorariihms by this Oblerra-
- ones: chacis, EC: Ff:: Ff: Dd:: Dd: 68, (90. rion, a5 ic may ac firtt Sishr Coem 10 promile,
- dramn trom che midele of each Subdirision and 10000, Whose Locarichms must be Founc
- FF, FD, D6, (90. and (0 on, rill chese paral- also; and buc 900 Betreen 100 and 1000
- el Lines sromine verr numerous, have al lalt aut bur 90 bereen 10 and 100, and buc
- trical: For the Lines AB, AC, AD, AF, are gures, buc ontr imaginins chem to be dravn.
- the Geomerrical Lines A a, Bb, Cc, (96. d0 dD and FF, Or between F f arid F c, EC. BUI
- Let there allo be more Mean Proportionals because chere are 9000 Mmbers berween 100C
Cite
Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences, fol. - . Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/806933011:0481?run=74