[ * 3 6 ] 
the greateft part of the water is prevented from en- 
tering the buckets ; and the reft, at a certain point 
of its deicent, is thrown out again by the centrifugal 
force. This appears to have been the cafe in the 
three firft experiments of the foregoing fpecimen ; 
but as the velocity, when this begins to happen, de- 
pends upon the form of the buckets, as well as other 
circumftances, the utmoft velocity of overjhot wheels 
is not to be determined generally : and, indeed, it is 
the lefs neceftary in practice, as it is in this circum- 
ftance incapable of producing any mechanical effeff, 
for reafons already given. 
VI. Concerning the greatejl Load that an Over foot 
Wheel can overcome. 
The great eft load an over (loot wheel will overcome , 
confidered abjlradledly , is unlimited or infinite : for as 
the buckets may be of any given capacity, the more 
the wheel is loaded, the flower it turns ; but the 
flower it turns, the more will the buckets be filled 
with water ; and confequently tho’ the diameter of 
the wheel, and quantity of water expended, are both 
limited, yet no refiftance can be afligned, which it is 
not able to overcome : but in pradtice we always 
meet with fomething that prevents our getting into 
infinitefimals ; for when we really go to work to build 
a wheel, the buckets muft neceflarily be of fome 
given capacity ; and confequently fuch a refinance 
will flop the wheel , as is equal to the effort of all the 
buckets in one fem i-circu inference filled with water. 
The ftrudture of the buckets being given, the 
quantity of this effort may be afligned ; but is not 
of much confequence to the pradtice, as in this cafe 
alio 
