Cmill autcm modo erit pro Liina: 



Quoniam igitur hic prima mcmbra conftantia fub conftan- 

 te C complecfli licct, tota acqu.uio in fequcntem formam 

 contrahctur: 



o z: C + r 4- ^" ( I - 3 cof. Cp' ) + ^^''^ (3-5 cof.^)') 

 + Tii-'{^ - 3 cof. v|.') +'^-^^(3 - 5 cof. vl.'). 

 Quod fi crgo brcuiratis gratia ftatuamus "-* z: A et ^^r2(, 

 tuin vcro 5^"^- — B et M — 58, acquatio noltra erit: 

 0= C + r 4- A r r ( I - 3 cof (J)' ) 4-91 r' cof. (3 - 5 cof. 0^) 

 4-B;r( I - 3 cof. v|y')-f25r*cof. vj/fs - 5 cof v|>') 

 mox autem patcbit litteras A, B, 2(, 25, frartioncs cflc 

 quam minima?, 



§. II. HaiTtcnus radium Tcrrae in ftatu natiirali 

 vnitatc cxprcnitTuis. Quoniam vcro cxccnum vel dcfcc - 

 tum quantit;uis r lunra vcl inlVa hanc vnitatcm in mtn- 

 furis abfohitis, lcihcct pcdibus, dcfidcramus, ponamus radi- 

 nm Tcrrac naturalem — k, ira vt fit vti (upra oftcndimas 

 a.~ $96 k et (3 =: J ; tum vcro pro dillantiis mcdiis Sohs 

 et Lunac a— 2+000 )t et l> — 6ok., tantum opus cft , \t 

 hac httcra /. omnes termini aequationis inuentac ad cun- 

 dcm dimcnfionum numcrum rcducantur; vndc cum in ter- 

 niino principah, qui cft r, vnica fit dimcn(io, ctiam in 

 rchquis tcrminii vnica dimcnfio mcffc dcbct ; quarc quia 

 littcrac a, (l , a ci b iam vnam dimcnfionem contincnt » 

 acquatio nollra fcqucnti modo cxhibcri dcbct : 



