[ 289 ] 
Tt is to be obferved, that, for about a Month be- 
fore, and a Month after the Conjunction of Jupiter 
\vi h the Sun, by reafon of the Proximity of 
Jupiter to the Sun, the Eclipfes cannot be ob- 
Crved. And this is the Reafon that no Notice has 
been taken of them in the Catalogue between the 
25th of March and the 24th of May following. 
The Times here fet down are according to the 
agronomical Way of reckoning, which fuppofes the 
Day to commence at the Noon of each Day, or 
when the Sun is upon the Meridian ; and counting 
the Time on in a iucceflive Order, without the 
Diftinttion of Morning and Afcernoon, til the Sun 
returns to the Meridian again the next Day at Noon. 
Thus, for Example, in the preceding Catalogue, the 
firft Emcrfion of the lecond Satellite is faid to happen 
on January 1. at 20 Hours 6 Minutes ; that is, ac- 
cording to the Civil Way of reckoning, on Jan. 2. 
at 6 Minutes after 8 in the Morning. 
O o 
XVIII. 
