[ 3*2 ] 
iqual-altitudes taken by Mr. Mafon, that there can be 
no doubt of the times of his obfervations being found 
from a true meridian. 
I cannot leave this fubjedt without taking notice of 
a remarkable expreflion in the hi dory of the Me- 
moirs of the R. Academy at Paris page 96, for the 
year 1757. It is there faid that the Englidi intend- 
ed to fend an adronomer to North America to ob- 
ferve the tranfit of Venus (according to the plan laid 
down by Dr. Halley) before they faw the map of the 
tranfit by M. de L’llle, and the authority produced 
for this affertion, are the Englifh news papers, which, 
if they had underdood the nature of thefe papers, 
can be no authority at all. I mud therefore, on the 
bed authority, inform the gentlemen, who are the 
compilers of the hidory of thefe memoirs, that the 
R. Society never once thought of fending an obfer- 
ver to North America, even before they faw the map 
of the tranfit by M. de L’ide. 
N. B. In this paper I have employed the fame ele- 
ments as in my former paper on this fubjedt, except 
that in reducing time to fpace I have made ufe of 
4' o" 03 for the horary motion of Venus in her path. 
A method 
