8i CVRFATnLA LAMINAE 



ta obtincbitur— ^-/^^±-^^5-^1^— i l ix ^ ^ix - dJ 



V— i dsV— a V^' dsV— 4. 



Va Vj V6 



^"^'^ vr~v6"— v5 v5^ • ^^ M"'^ oi"it"r 



- 2 2 2 "l//' 2 2 2 2 \ 



<is 2dgdx 1 Ax — — Ay _i_dz Jj.2 2__j_£d£_djy_ — djy dss"j 



a Va6 ~f~ 6 6 ■» '^""- " Va6 



feu ^~^ ' • ^ ^- _2dzdx— -2V:gd^ "djy"- dy "dz ") . porroi^rtiLii. 

 b -i/ab Va6 * ^ b 



2 2 2 2 2 2 '^ 



~4— jrj.^—^^ 4-[&-^ I ) d? dxdz — ^ads dy '^dy dz /'„,, 



^ o Vo& — H" ■ 5 ^^" 



2 2 '^ 



(j-H I ) d£_ , _ ^dg^" ^^ 2 4-'fe-+-i^dxds •p,- 2dz — (&-+-i)dM 



b ^ a "^"-^ — vi6 ^^ V^ — ^Vi""- 



2 2 o o 



_|_|/^ (6-f-n dx" (M-i)"d^" _|_ ^(7j'2) — b^ih^l -\- (Jy 



y(4.-(^' Ergo =|^'--*;;-^±^V(4.-(^') fcu z- 



Eadcm nequatio inuenitur ex primo inucntii 

 acquationc, vbij IV.v ctjQ(/j cuuucfcunt ndcoquc rcltat 

 E.v-i-Fi—'^^ Q.E. L 

 yig.i;. Vrobkma. Inucnire curuaturam clatcris graui- 



tatis exncrtisj et vbiuis ciusdem vis clafticac. 



SG/ufio.Cum vis elaitica vbiquc fit cadem ponatur 

 vzz/? •, eritquc E,r -f- Fi'"-^" ^ Poni potcft loco E.v 

 -{-Fj—Gtj vbi t denotct abfciflam alio- loco aflum- 

 tam , critque G/~^*,quae aequatio pracbet curuam 

 eladicam iam coguitam , hoc Tcro modo integra- 

 bitur. Erit Ex(fsd)'-^FYds4}'—At/d^.v feu xdj-h-^^ 

 zi:^'^^-^'^, Etiamaiitem enE.r^.f^/.v-f-Fr^.f^.vzz-A^^rt';^ 



Eds 



ieu jdx -f- ^^-—-^^. Confequeuter ad- 



dea- 



\ 



