454 
Dr. Moll's account of the experiments on 
SECTION IX. 
Experiments of 26th of June , 1823, when the shots were not 
reciprocal. 
The 26th of June, the following shots were seen and 
heard at Kooltjesberg and fired at Zevenboompjes, but no 
shots from the first station were heard at the latter. 
Number of 
Time between 
Shots. 
light and report. 
1 . 
50,20 
2. 
50,80 
3 . 
51,44 
4. 
52,20 
D • 
51.10 
Guns fired at Zevenboom- 
9 . 
50,11 
► jes, heard and seen at 
11. 
50,99 
Kooltjesberg. 
12 . 
50,81 
13. 
51,00 
14. 
51,01 
16. 
51,12 
Total of 
12 shots 
560,78 
The mean of which is 50^98 
which gives a velocity of 3 * 6,59 metres = ns7,i34 feet 
in i". 
The temperature was at that time 
at Zevenboompjes n°, 57 
Kooltjesberg 12 , 54 
12,055 =*• 
Mean temperature 
