mir 
* 
a Nes its * wy Spee 
2 spain nat, > iad 2 
e ae Dos SH re : eae 
“es ae . b ite \ ie ° 
bie a x. quadrant ee magne 
7 O > op gga ae : ae a ror 
aor pbb sc nchaion ut ee x » dir 
2. ae Pot then p=" ay 45. PST 
° : < , + Te -m—1 : 
the og he of the hijperbalic fpiral ;. the body » 
will therefore revolve in ‘this curve, and will 
come to an apfe at ‘ane centre. + For at at that‘timne - 
We — 7" 
y= =V —- ey: “Its will likewife appear ° 
gw aE 
thats = <rP x “Ak the correct 
$ 
fluent therefore sis m= ee £Y 
NOre == —. Pare F, whenthe body 
se and z= 
m—t1 ie 
defcends. If the body be infinitely diftant fom 
the centre, then.z = Bek a Re Hence ifs 
Conca. ey. the number of revolutions which 
the body will defcribe in ie as to an infinite 
«f 4. x Sena Be gh 
a": 
aves BX patie. 
4 : 
: 
* height from the diftance v= 
e ; m—j1 Xx. ey = 
Qcr= es P. ab 2 
; Ag ntl si On Sas 2 a eS. 
saa for V* x Peer. In defeend- 
2CY s?@—} ing 
