dy offer'd towards it foliition, has been but as it were the 
winding up of the Movement in order to make it go ; 
and it will appear from what follows, Th^ the fame jjrmctpk, 
v^hich hitherto has bin the caufe of its REST^ fhall from henceforth bs 
the caufe of its MOTION. To this purpofe, be pleas d to ob- 
ferve Ftg. i. where the fame Movement, which was fciagra- 
phically defCrib'd i^^^. 3. is tor the better difcerning its in- 
ternal ftrudture, and explicating the reafon of its motion, 
reprefented in naked lines- Here then, let the numbers i, 
3 J 4* reprefent a train of wheel- work, wherein there is 
no material difference from what is found in a common 
Watch i only the numbers of the teeth on the wheels and 
pinions are to be fo calculated, tiiat the motion of the whole 
train may correfpond to the affign'd Revolution of the bo- 
dy of the Movement, wh ch is to be once in 24 hours» It 
would be expedient alfo, that a fpiral fpring were applyed 
toils Ballanccj as in the latter Movement is ufual j but of a 
Fuje here's no need, for the turns of the body of the Move- 
ment as it defcends upon the Stage, anfwer all the intentions 
of a ftring or chain j and the contranitence of the weight P 
to the excefs of ED above L QJD, ferves inftead of a per- 
petual fpring I and the Movement wants only a perpetual 
defcent. ro make its motion lo. And whereas- the great 
wheel in ordinary Movements, is placed as near the edge of 
the framing plate {ff ) as it may be ; here it muft (with its 
Ax^s or Arbur M) poffefs the center of the Movement : be- 
caufe this wheel is to carry the weighr or power F by the 
Vtslr^ M P, and that weight muft always keep an equidift- 
ance from the center of the Movement, that while the bo- 
dy thereof (/• e. of the Movement) performs its Revoluti- 
ons the faid weight P and the great wheel (to which it is af- 
fixt, ) may without any confiderable variation, continue in 
or near the fame Pofition, wherein they now are- Now for 
a while; be pleas d to fuppofe this weight P with its FcSt^ M P, 
to be taken quite out of the Movement, and laid alide : and 
and then conceive the body of the Movement to be plac'd 
on a Horizontal plain H H, its point of contacSl in that plain 
where it Ibould. but cannot reft, is T; becaufe the weight of 
that part of the Train mark'd with the numbers 2, 3, 4 re- 
moves the center of Gravity from A/, and therefore on the 
oppofite part of the Movement as about C ^ the infide of 
the hoop which forms the Cafe is to be loaded with a thin li- 
ning of lead, which may be a counterpoife to that part ojP 
the train that fo the whole body of the iviovement, toge-.. 
ther with all its furniture within and without (excei>ting on- 
ly, that F with its r^^^ is as yet laid afide s ) may on! that Ho- 
rizontal 
