{ i6o ) 
oras 1000 to 64; proximc ; and did make an Angle 
59 0 , or very little more, with the Meridian palling a c 
that time through the-Center of the'Shade. 
Next the Dir etftion and the Velocity of the Motibn 
wherewith theCencer of the Shade paft over England comes 
to be confidered, wherein the Reader is to be told that the 
Shadow pafles in a very compound Curve, which, as the 
former is not in piano, and only deferrable on the Surface 
of the Sphere : nor is its Motion equable, but compoun- 
ded of very many Elements producing a great Variety. 
By what Method its Points, and its Tangents in thofe 
Points, are to be obtained, I referveto the nextOpportu- 
nity, this Account being defigned for the Curious in ge- 
neral.* only I mud acquaint them, that for fo fmall a 
part of theCurve as went over England , it may be efteem- 
ed a right Line, with more Exadtnefs than we ufually find 
in mod of our Geographical Charts. And the like may be 
laid for the Velocity, which, though in our prefent India nee 
it was continually decreafing, may, for fo ihort a time, be 
iuppofed to have been the fame without fenfible Errour. 
By a careful Calculation I have determined the Veloci- 
ty of the Motion, at the Time of the Middle of the Eclipfe 
at London, to have been 4,9 Geographical Miles in a Mi- 
nute of Time quant proxiipe : and that its Way made an 
Angle of 52°. 45' with the Meridiantowards the Eaft wards 
of the North ; wherefore the faid Way made an Angle with 
the Axis,of the Ellipfis of 68°. 1 5'. And the greateft Dura- 
tion of Total Darknefs having been 3', 5 7 ", (as was before 
Ihewn) it will follow, that that Diameter of the Elliptick 
Figure according to which the Shade paft, was no lefs than 
114- Geogr. Miles* And from the Elements of the 
Gonicks ’tis eafy to be proved, that fuppofing the Figure of 
the Shade a true Ellipfe, whofe Axes are as Radius to 
the Sine of 40 Degrees, the greater Axis would be 171 
Geographicalt Miles, and the lefler 1 10 ; and the neareft di- 
ftance between the Limits fuppo fed Parallel 1 64 fuch Miles. 
And 
