C 707 ] 
Kr defcribatur arcus rn fecans KM, itm, in r, n, 
et arcus st arcui rn proximus fecans KM . , Km, in 
s, t. Jam quoniam areola rstn, dum terra revolvi- 
tur circa axem CK, fertur velocitate diftantis Kr 
proportionali, motus ejus proportionalis erit Krxrswt 
five 
K r* X. H hX r s 
KH 
unde motus ares totius KMrn 
• 1 . • KM^XHh a tt rr 
proportionalis erit — JkTT^' ^gatur « ^ perpen- 
dicularis in KD , et fi femiaxis major KE parum 
excedere fupponatur femiaxem minorem KD , erit 
HM= 
HV'xEc 
Tt? 
quam proxime, adeoque 
KM 2 xHh_ 
3 KH 
KH'xHh HMxHbxEe 
.3 + EH ’ 
ac proinde fumma motuum 
arcarum omnium KMm, id eft, motus totius fedi- 
onis erit proportionalis circumferentiae D HD duds 
. KH * . KHxEe n . ^ A r • i* 
in 1 . bit autem CA aequalis lemidia- 
3 ^ 
metro terrae majori, CB femidiametro minori, et 
AB femidiametrorum differentiae; fit Kk particula 
quam minima axis CK, et C denotet circumferen- 
tiam squatoris ; turn, quia eft KH. KE::CB . 
CA, et Ee . AB :: KE . CA, erit motus portionis 
fphaeroidicae, cujus craflities eft Kk, duabus fedio- 
nibus parallels terminate, hoc eft, circumferentia 
DHD duda in Kkx 
KH * . KHxEe 
proportionalis 
quantitati 
. CXCB xKE 3 xKk . CxCb z XKE*xJBxKk 
3 CA* 2 CA* 
adeoque fumma horum motuum five motus to- 
f tius 
