Of GREATEST ATTRACTION. 234 
Der a ee - fin %, then = z cof 2, and cote” =1—x°; where- 
b nt. 
avr + 5 av) 
fore, again, by fabititution, f= 
bnu 
fa + F—F u 
Let a +2, or AL? = i then f o 
ban bnu 
fo —F a a oi oo 
c 
Ir, therefore, @ be fuch an arch, that : == fin. % a Ss 
err p SSS eee bnu - 
Seal Vi—e a = wy ee 7 ———— 
&- FOG and. VI =) 06 ae 
A Sa aa Hy es a tou 
°° 
| they 8! 
23% 
es ‘Rin Jost isd Janets B being a 
iJJRUIL 
Pater quantity... ue 
adi to aoitssitis axi3 bu 5b $3 ar od 
" Now, fince fin 9 = rites fin %..@ is nothing when z is 
nothing ; : and. as f may be fuppofed to begin when z begins, we 
have likewife B=o03 and a2 ? =». multiplied into an arch, 
the fine of which i is to the fine of, .%, in.the given ratio of ¢ to 
= sit — 2 BG. BRA Ba 
ee is fuch that = find = 2 * AG = AL™ AG: 
Vor VIP ne 8 pee an -— Muttipry 
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