500 Dr. stedman on the Degrees and Quantities 
between i and 3 being found, will, if I miftake not, 
anfwer the preceding objection. 
This worthy member, at the end of his obfervations, 
fays, a mill fo conftru< 5 ted may be expected to go the half 
of the year; that is, I prefume, a wind-mill conftrudted 
in the neateft and molt ingenious manner. But this, I 
have reafon to believe, is far from being the cafe with 
wind-mills in this country, they being for the molt part 
clumfy. I doubt not but wind-mills, the conftrudtion of 
which this ingenious gentleman hath directed, though 
of the fame fize and confiding of the fame numbers 
with thofe I have feen here, will neverthelefs be moved 
by a lower degree of wind, and confequently will go a 
greater proportion of time, though they have the fame re- 
fiftance to overcome as others lefs artificially conftrudled. 
Indeed the fame wind machine, as is well known, will 
require a degree of wind confiderably higher when 
its joints are dry or become gummy, than when they are 
fufficiently greafed. In my eftimate I have all along had 
an eye to the wind machines which have the greateft 
refiftance to overcome, and confequently the machines 
themfelves of the largeft kind. But when, the learned 
gentleman fuppofes a machine to go one half of the 
year, : he may perhaps not underftand one abfolutely of 
the 
