254 J U L J U P 
the Julian Period by anew and very eafy me- 
thod - - De Billy 
— A method for finding the number of the 
Julian Period for any year afligned ; the num- 
ber of the cycle of the fan ; the cycle of the 
moon ; and of the indictions for the fame yeaf 
being given ; together with a demonftration of 
that method - - Collins 
I voR y • Microfcopical obfervations of ivory 
- - Leewenhoek 
Jupiter. A fpot in one of the belts of Jupiter Hook 
■ ■ ■■■ Some obfervations concerning Jupiter: of the 
fhadow of his fatellites, feen by a telefcope, 
paffing over the body of Jupiter Oldenburg 
— — Of a permanent fpot in Jupiter ; by which is 
manifefied the converfion of Jupiter about Jars 
own axis Hock, CaJJini , and Oldenburg 
— A more particular account of thofe obfervations 
about Jupiter, than were mentioned in N° VIII. 
Boyle 
Some particulars from foreign parts concerning 
the permanent fpot in Jupiter - Anon. 
- — — Obfervations lately made at Londofi concerning 
the planet Jupiter - - Hook 
— — Obfervations of a tranfit of the mpon by Ju- 
piter Sept. 30, 1671 - Hevelius 
- Obfervations of Jupiter’s tranfit near two fixed 
fiars,in Derby, Feb. and March 1671 Flamjlead 
An account of the return of a great permanent 
fpot in the planet Jupiter - Caffmi 
* Some more accurate obfervations about Jupiter’s 
tranfits near fixed ftars; ufeful for determining 
the inclination of that planet to the ecliptic 
Flamjlead 
— — A fhort account of the three great conjunctions 
of Saturn, Jupiter, and Mars, at Dantzick, in 
1682 and 1683 - Hevelius 
— - Two aftronomical obfervations of the eclipfes of 
the planet Jupiter by the moon, in March and 
April 1686^ at London Hook and Halley 
Several obfervations of the eclipfe of Jupiter by 
the moon Mar. 31, 1 686, at Paris CaJJini 
At Avignon - - Bonfa 
At Nurenberg - Zimmerman 
Wurtzelbaver 
Tranf. 
1 324 
11 568 
XII 1003 
I 3 
— i43 
— 171 
— 209 
— 245 
VI 3031 
VII 4036 
VII 4039 
VIII 6033 
XIII 325 
XVI 85 
XVI 1 75 
I76 
— ! 77 
Abridg. 
Ill 393 
~ 399 
1 382,400 
— 3 8 3 
— 400 
— 382 
— 347 
-382,400 
— 401 
- 357.395 
— 34 
-■ 3 6 3 
— 360 
— 3 6 4 
Dantzick 
