r 5 66 ] 
u by what rule I know not, unlefs it be by fuch a 
tc table as my friend Maifter Wright of Caius-col- 
“ lege in Cambridge at my requeft fent me (I thank 
“ him) not long iince for that purpofe, which table 
“ with his confent, I have plainlie fet down,” &c. 
About the year 1720, a globular chart was pub- 
lifhed, faid to be conflruCted by Mr. Henry Wilfon ; 
the errors in which were obviated by Mr. Thomas 
Hafelden, in a letter to Dr. Halley ; who at the fame 
time exhibited a new fcale, whereby diftances on a 
given courfe may be meafured, or laid off, at one 
extent of the compaffes, on W right’s projection j 
and was intended to render the fame as eafy in prac- 
tice as the plane chart. 
The above chart was publifhed in oppofition to 
Mr. Wright’s, which that author charged with im- 
perfections and errors, and that it reprefented places 
bigger than they are upon the globe. 
It is true, the furface is apparently enlarged ; but 
the pofition of places, in refpeCt to one another, are 
in no wife diftorted ; and it may be afferted, with 
the fame parity of reafon, that the lines of fines, 
tangents, and fecants, are falfe, becaufe the degrees 
of the circle, which are equal among themfelves, 
are thereupon reprefented unequal. 
Yet if a map or chart was fo conffruCtcd, as to 
fhew the fituation and true extent of countries, &c. 
prima facie (if I may be allowed the expreflion), 
and yet retain all the properties, ufes, and fimplicity, 
of Wright’s conftruCtion, it would be a truly great 
improvement ; but this feems to be impoffible. 
The method exhibited by the Rev. Mr. Murdoch, 
in his paper, read before the Royal Society on the 
9th of February laft, fhews the fituation of places, 
and 
