( iop7 } 
II A Letter mitten by Monfieur Blondel to a 
Friend^ mformmg him of what faffed in the la^^ 
fubUck,Affemhh ofthe Academy lioyal of Sciences 
at ?ms, held }>lov» 12. I JO Communicated 
Monfieur Geoffroy. F. R. S. 
SIR, 
JHa ve endeavoured what I could to fatisfie your com« 
raendable Curioficy touching the points of Know» 
ledge, treated of in the laft pubhck Airembly of the Jr^i^/^- 
miRoyd of Sciences at and ftrove to recal to mind 
as much as was poffible, the principal matters faith- 
ful Jy« . Yet if there ftiould happen any miftake in what I 
.write, let it, be attributed to me. You know we have 
not {o great a command of the Memory, as to be at 
fured to fail in nothing, how great foever the care be | 
efpecially in matters fo fablime as thofe to which the 
Learned of this Academy apply themfelves. Som.erimes 
even, the tdo' great defire to retain all is an hindrance to 
' the; vivacity of the Memory:" Every thing is fine, 
6vwy diiog worthy to be remembred, yet ^we cannot 
^rdtain all, (b 'tbat or^e.is under agreac concern'to omit no-" 
thingcodfide^^able»' This I have foand true in my (elf, and 
muft bt exciifedif I have coraraitted fom.e miftakes-, and" 
yoti' have too much, goodnefs not to,:receive it, as an 
excufe* • - ^ ^ 
Monfieur C^^Jini opened die Affhmhly with a Difcourfc 
c6ii<?aining rhe Obfervations he had made in 'his laft Voy- 
age, with a defigri to determine the palTage of a Meridian. 
Line f taken from a point in the Obfervatory zt Paiis) ftcmi 
■ one end of France io the other. - In the firft part ot 
. . I i 1 i i i i :thi§ 
