250 Francisci Bertellii 



Evidenter patet istas subsistere reladones: 



(1) s-^s'-^s''-\- = S 



(2) d^d'^d"^ = 2 



(3) S — 'E — s~-d-^s'—d'-hs"—d"-h etc. 



(4) l^r^l"^ — h 



(5) t-^t'-^-t!'^ = T 



(6) lz=i>t; l'=:i>'t'; l"= v"t" ; etc. 



(7) V = ^= ^ =— (^.f-Ht;'f'-(-w"t"etc.) 



(oj p=:av; p=:a v ; p =a v ; etc. 

 (9) P = AU 



/«.2(:f — ?) /'a'.2'(/— 5') /"a".2"(/'— 5") 



n n' n' 



l-etc. 



, fa,.n(s—d) fa'.n'(s'—S') f"a".v"(s"—S") 

 (1 0) Y =^-^^-i V A^ -V^ ^A i ^ etc. 



, „ fa.v(s-^) fa'.v'(s'—d') f"a".v" {s" —d'') 

 (^1 1 j r _ jj -t- jj, -^- jj„ -r- 



^=ll(A(.— ^)-f-;i'(5'— ^O-^'^'X^"— ^")-t-etc.i 



(^2)([p'=^('?(^-^)-H^'(^'-^')-t-'?"(^"-^'')-+-etc.l 



^'=€^^0,(5 — ^) + 2;'(5'-a') + 2^"(^"— ^")-+-etc.} 



etc. etc. 

 (l3)P=^[.-^ + 5'-^'-H5"-r-+.etc.]=^(S-X) 



Patet eliam quum sit 



(14) Z<T aut ad summum =T 

 turn maxiraam aquarura quantitatem P , atque velocitatem me- 

 diam V Males locum habituras: quum autem sit 



