m x P2 yn—t 
ne s  P. 397, 13 16, for v z 2, read 
yn—1 
yim 
m—t1 
V ZU. P. 401, 1. 19, from the bottom, for, v=, read 
>=. P. 402, 1. 2, from the bottom, for 4 r, read 
A—r. P. 404, 1, 8, for 1 = time; read ¢ = time, 
oo 
pn T —f- ™ Kit 
P. 405, 1. 10, for + m—tL 
oem app lecies ist ania al 
: Vad x ay * pe 
. v M—tL1 m—1' }? 
e ie ty 9 
read + rt . 
{ aa a 
¥ 9S Hitgerests: of — pomll* 
4 - ae m BS 
ee 
the bottom, for + m—1 
o * in - 2 /- m P2 x : Tr yay 
™ * 
Sea II 
read + i Py 
wl ™m s yy x 
1—m P iam TD 
P, 408, 1. 4, from bottom, for Gy, . 71, read y+ ry—33 
BIt Ath Bit c Ants 
P. 409. 1. 4, for 4 = om read a ot he 
7 if 
, and 2 1, from 
P. 410, 1.\4 from the bottom, for r y, readry?. P. 412, 
l, 11, from bottom, for n=, read r =. P. 45,1. 11, 
for “to” read “or.” P. 416, 1, 6, for r X Gos 
bV 
read r Xx as P. 418, 1. 6 from the bottom, for “ the 
centre of force, or fuch parts ;” read, “ the centre of force, 
being defcribed by a centrifugal force, or fuch parts.” P, 
419, 1. 12, from bottom, for — m Ax" *s read — 
mAx™—*, P. 420, 1. 3, from bottom, for m”, read m™- 
P. 420, l. 15, for ‘* pofitive,” read  poffible.” P. 429, 1. 9. 
for “ acdute,” read * acute,” P. 499, 1. 2, for “ another,” 
read “an earthen,” P- 640, 1.14, for “ fo at,” read * fo 
as at,”? 
