[ 321 ] 
alfo greater than i — x 1 4* ~~~> it follows that 
P 9 
the fluxion off X F/xi+7X i — — added 
p q 
to the fluxion of d X Cf x i — — x i - 4 - — is 
P _ q 
greater than thefe two fluxions multiplied by i - — . 
and, there fore, greater, than the fluxion of \ 
n z z z 
1 — jf > and > therefore, c x F t -\- d x Cf 
greater than Qf. 
26. It we fuppofe three continued arithmetical 
means betwen Cf and F t ( 3 —l + F * f c _/ + F f 
3 F t 4. C f\ ^ ^ 
" 4 ) Qj will be greater than the fecond, and 
lefs than the third, if p is greater than 1. That Q J 
will be greater than the fecond has been already 
proved ; and that it will be lefs than the third, will be 
an immediate confequence from the laft Article, if 
it can be fhewn that the fluxion of — — • is greater 
C f 
than the fluxion of This will appear in the 
following manner. The ratio of the fluxion of 
C/ to the fluxion of F ^ is by Art. 7. and 14. 

1 - 
n z 
X I + 
n z 
q—I 
1 + 
n z 
X 1 
«""z| ! 
Q I 
The hyperbolic logarithm 
Vol. LIV. 
T t 
of 
