TRACT 3 1.
IN GUNNERY, 1785,
41
97. Wednesday, September 28, 1785.A fine clear day.
Barometer 30'So; Thermometer 60.
N D
Powder
Bull’s
Elevation
Ttme
|
Range
wt
diain
oz
oz dr
inches
degrees
sec
feet
1
4
16 10
1-97
15
5180
2
4
•
•
4370
3
4
•
•
4
4
16 7
4020
5
o
• . ■
45
5120
6
2
•
m-
5300
7
2
•
•
21
5200
8
2
•
4120
9
4.
16 11
1-95
15
10
4
•
•
13 i
5770
11
2
1 6 7
1-97
45
23
5600
12
2
16 10
*
These 12 rounds were fired down the river : the gun,stations, parties of cadets, &c, as before. The fall ofthose balls was not seen whose range is not set down. With2 oz of powder the gun was elevated 45 degrees, butwith 4oz only 15 degrees, as before. The mediums are asbelow:
Powder
Elev.
Time
Range
2 OZ
45°
22"
5068
V
4
15
4523
Rejecting n° 10, as very doubtful; a mistake most likelyhaving been made in the weight of the powder.