(io34) 
-his aforcraid Preface, he faith, That were the place of Mer^ 
€urf$ Node once found, from this his Obfervation of Adcrcur/^ 
ihe Suns Parallaxis might be deduced* 
Hereto are added , by our Author, 
Modi c[uidamfem Gtometrici fro ParalUxi huna invepgandg. 
Of which, there are three propofed, Yet the beft way of 
iindiog the fame (as the x^uthor noteth in his Preface) would be, 
-by comparing the Meridian Altitudes of the Moon, observed 
both in St, Hclem and in Eurpfe at the fame time^ 
The concluding Chapter is entitled, 
^^dsim humris theorU Bmendationem fpectanda. 
Wherein it is ( as is noted in the faid Preface ) that Aftro- 
tiomy is at prefcnt moft of all defeflive. And that the difco- 
■very hereof would lead us to the moft exa(ft w^y of finding ou 
the Longitude of places. 
LONDON, 
Printed for Jda Martjfffy Printer to the Rpyal Society. 1679. 
