[ 3i8 ] 
time of the internal contact is therein fet down at 
c h 34' 47 '. Alfo in a letter from him to the R. So- 
ciety, on his arrival in Europe at Lifbon, and dated 
the 6th or March 1762, and which letter is printed 
in the Phil. Tranfa&ions, vol. LII. part I. the time 
of the internal contact is therein fet down at o h 34' 
47' true time. In another letter from him at Lifbon 
to the Royal Society, dated the 14th of March 1762, 
the time of the internal contadt is again fet down at 
o h 34' 47" true time, and he ends this letter in thefe 
words, “ Notez que l’attouchement interne des Bords 
s’efi faite a o h 34' 47 Je fais cette remarque, par- 
ceque, vu la proximite de prononciation, qui dans no- 
tre langue eft entre 30 and 40, celle attouchement fe 
trouvoit marque 10" plutot qu’il ne devoit letre, dans 
une copie que j’ai faite pour mon ufage ; cette erreur 
aura pent etre pafle dans quelque autre copie. Mais, 
felon l’original, il faut abfolument lire o h 34' 47 // . 
M. Pingre has no where, that I can find, in the faid 
memoir given any reafon for this alteration of the 
time of the contact. If the internal contact at the 
egrefs at Rodrigues happened at o h 34' 47", and if 
this is compared with the fame obfervation at Tobolfk 
the parallax of the Sun comes out = 7", 36. If the 
time of the contadl at Rodrigues was at o h 3 5' 47", 
and if this is compared with the fame obfervation at 
Tobolfk, then the parallax of the Sun is found =2 
8", 62. Again if the time of the contact at Rod- 
rigues was at o h 36' 49", and if this is compared 
with the obfervation at Tobolfk, the parallax of the 
Sun will be found 9", 93. But to return. 
M. Pingre, in his letter to the Royal Society dated 
at Lifbon the 14th of March 1762, fets down the 
time of the internal contact at the egrefs at o h 34' 47" 
5 true 
