130 Dr. Herschei/s Observations of a Comet , 
streamlet, which was at the distance of the outermost one of 
the opposite side. 
Nov. 14. On the preceding side there was a very faint out- 
ward stream, and on the following side there was a still fainter 
and shorter stream, also on the outside. 
Dec. 14. There was only one short and faint outside stream 
at the preceding side. 
Uncommon Variations in the Length of the Streams. 
It has already been mentioned, that the streams or branches 
were subject to a considerable difference in their respective 
lengths ; in order if possible to discover the cause of the ob- 
served changes, I continued my observations of them. 
Oct. 15 and Nov. 5 and 10, the preceding branch was the 
longest. 
The 3d and 9th of November the branches were of equal 
length. 
The 13th, the following was 4 0 6' long, the preceding only 
3 ° 3 1# * 
The 34th. They were both of the equal length of about 
3 ° 3 1 '- 
The 35th. The preceding branch was 3° 31' long, the 
following 4 0 6'* 
The ibth. The preceding was 3 0 33' long, the following 
3° 48- 
The 19th. The branches were equal, and about 4 0 23' long. 
Dec. 2. The branches were nearly equal and about 3 0 12' 
long ; they joined more to the sides than the vertex, and had 
lost their former vivid appearance ; their colour being changed 
info that of scattered light, 9 
