Tb: vje cfthe yux&m* 21$ … is but halfe the diftance: if it fall on 25, it is a quarter of thediftancc:if on 7$yh is three quarters of the diftance.For as oftas the thread falleth on the parts of right fhadow, As 100 to the parrs on which the thread falleth:So is the diftance to the height required. And on the contrary, As…
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
