Mifcellanea Curio fa. 57 



terfe&s the Circle, as at is the place of Sta- 

 tion fought. 



This Problem may be of good Ufe for the 

 due Situation of Sands or Rocks, that arc 

 within fight of three Places upon Land, whole 

 diftances are well known *, or for chorograf hi- 

 ed Ufes, &c. Efpecially now there is a Me- 

 thod of obfervingAngles nicely accurate by aid 

 of the lelefcope ■ and was therefore thought fit 

 to be now Publifh'd though it be a competent 

 time fince it was delivered in Writing. 



