^ o pafs through the place of Station ^t^, and any two of 
the Oh]Gdis(^?L3mthQCmhScheme)thtoug\\ ^ and wherein 
making the Angle D B f equal to the obferved Angle A S 
and B equal to the Complement to 1 80 degrees of both 
the obferved Angles mDS B thereby the point D isde- 
termioedj through which^ and the points B^ the Circle 
5^ to be defcribedand joyoing D fproduced^ when need 
requirethj) where it interfects the Circlcjas at is the place 
of Station fought^ 
This Vrobkme may be of good Ufe for the due Scituation 
of Sands or Ilocks^ that are within fight of three Places up- 
on Land, whofe diftances are v/ell known 5 or for Chorogra- 
phkal Ufej^j &c, Efpecially now there is a Method of ob- 
ferving Angles nicely accurate by ayde oixh^Telefcope-^ 
and was therefore thought fit to be now publiOitj though 
it be a competent tim.e fince it was delivered in in writing. 
An Accompt 
Offome Miner ai Obfervations toHchif2g the Mines Gornwal 
and Devon 5 wherein is defcribed the Art of Trayning d 
Load the Art and Manner of Digging the Ore 5 and the 
Waj/ of Dressing and of l^lowing Tin Communicated by 
an Inquipive ferfon^ that was much converfant in thoje 
Mines, 
EOr the more eafie apprehending of this Art^itis (uppo(ed5 
firji^ That there hath been a great Concuffion of 
waters in that Separation of the v^atersfrqm the waters 
mentioned in theCreation^ Gen^ v, 9. 10. when the Dry 
Land firft appeared 5 oi'mNoahs Flood 5 or at both times, 
whereby the waters moved and removed the (then) Sur^ 
face of the earth* 
Secondly^ That before this ConcufliGn, theuppermoft 
furfdce. of Mineral Veins or Loads did (Jn m$fl places^ lie e- 
ven with the fthenrealj but now imaginary) furface ofthe 
Earthy which is termed by the Miners, the she f^ Faft Com- 
^re^ or Ground that was never moved in the Flood (fay 
they ) whom and whofe terms 5 for avoiding of fupeifiu- 
o^s words and Reediefs circumloqutionsjl (hall in thefe fol- 
lowing 
