336 Dr. Herschel’s Observations of the 
1 7 h 2 9 ' 4 ° - ^ seems to be very near the contact. With 
300, very near the contact. 
ij h 30' 40". It seems to be in contact. It is brighter than 
that part of Jupiter where it enters. 
1 7 h S 1 ' 4°" ^ more than half entered. 
1 7 h 33' 40". It seems to be nearly quite entered. Its superior 
brightness makes it seem protuberant. 
1 7 h 34' 40". It is certainly quite entered. 
i7 h 35' 25". I see a little of the disc of Jupiter on the out- 
side of the satellite, equal to about £ of its diameter. 
!7 h 39 4° - The 3^ satellite is very bright, and of its usual 
colour. 
The 4th satellite is faint, and also of its usual colour. 
The 1st satellite is very bright, and the light of it is of its 
usual intenseness. 
The Magnitudes with 300. 
The diameter of the 4th seems to be to that of the 3d, as 
2 to 3 ; or perhaps more exactly, as 3 to 5. 
The diameter of the 4th satellite exceeds that of the 1st a 
very little. 
With 400. 
With this power the diameter of the 4th satellite certainly 
exceeds that of the 1st. 
The diameter of the 4th, is to that of the 3d, as 3 to 5. 
July 30, 1794. t 9 h 17 37 ” 10-feet reflector; power 300. 
The 4th satellite of Jupiter is a little larger than the 1st. It is 
of its usual colour. 
