( 636 ) 
water, which they fetch wholly from Springs, whereof the Country 
is fo full, that there is not houfe but hath one nigh the door. 
Jdvertifeme^t concerning the Quantity of a Degree ef a Great 
Circle^ in Engl i (h meafures. 
SOme while fince an account was given concerning the g^unn^ 
tity of a Degree of a great Circle^ according to the tenour of a 
printed French Difconrfe , entituled De U 
ilxltfM^rr^a . Mefure de U Terre. The Publifiier not then 
knowing what had been done of that nature 
here in England, but having been fince dircfted to the perufal of a 
Book, conDpofedand publiflied by that known Mathematician 
Richard Norwood in the year «636, entituled 7he Seaman s Fra- 
Btce^ wherein, among other particulars, the compafs of the terr- 
aqueous Globey and the Quantity of a Degree in Englifh meafures 
aredelivcr'd, approaching very near to that, which hath been 
lately obfer v'd in France ; he thought , it would much conduce to 
mutual confirmation, inafummary Narrative to take publick no- 
tice here of the method ufcd by the faid Englijh MathemaCician,and 
of the refult of the fame ; which,infl3ort,is as fol'ows : 
^;i635 thefaidMr. iVinv^?^?;/, Reader of the Ma hematicks in 
London^ obferv'd, asexaftly as he could, theSumtiier-Solftitial Me- 
ridian Altitude of the Sun in the middle of the City of Tork^^ 
by an Arch of a Sextant of more than five foot radif4s^ and found it 
robe 59^^^. 33'. And formerly (1//^, J. 1633.) he had obferv'd! 
the like Altiiude in the City of London near the Tower to be 
62 deg. i'. Whereupon heaflually meafured, for themoft part,the 
way from York ro London with Chains, and where he meafur'd not, 
he paced ir, (wherein, he faith, through cuftom he ufually came 
very near the truth ;) obferving all the way he came , with a C/r- 
cumferentor^ all the principal Anglesof pofition or windings of 
the way, with a competent allowance for other lefTer Windings, 
Afcenrsand Defcents ; rot layingthefedovvnby aPri?/w1f(?r after 
the ufual manner, but framing a Table muchexafter and fitter for 
this purpofe 5 as may be feen in the Englifh book it felf. And by 
this Method and Meafure he found the Parallel of Xork from that of 
London to bG 9149 chains, every chain being fix poles or ninety 
nine feet, i6[ -K/zg/z^feet toa Pole. Now, thefe 9 149 Chains 
being equal to 2 deg. 2 8'.(the aforefaid Latitude between thofe two 
Cities) a little calculation makes it appear, ihdit one Degree of a 
Great Circle, meafured on the Earth, is 367 196 of our fcct^numera 
367200, or 22254P0ICS; whichmake 556 Furlongs and 
14 Poles, 
