25Z Mr. Thompson’s Experiments 
the fame diameter as the plaifter bullet was lighter than a leaden 
bullet of the fame fize. 
In the experiments N° 88. and N° 89. folid leaden bullets 
were madeufe of. In the experiment N° 90. two bullets were 
difcharged at once; in the experiment N° 91. three ; and in the 
experiment N° 92. four were ufed. 
In each of thefe experiments a frefh fheet of paper was made 
ufe of as a fcreen to the pendulum, in order that the velocities 
of the bullets might be meafured more accurately ; and alfo, 
that the quantity of unfired powder might be eftimated with 
greater precifion. 
V. 
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N° 
84 
Grs. 
Ia. 
In. 
Grs. 
Inches. 
Inches. 
Inches. 
Ft. in 
fee. 
H5 
h3 
O 
— 
— 
— 
4,5 
— 
85 
• « 
• • 
9° 
h'33 
62,2 
7,16 
1763 
86 
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, . 
• • 
251 
2,82 
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1 3 1 7 
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1136 
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21,92 
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27,18 
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32,25 
833 
Remarks, 
Sth day ; in each of thefe 4 
experiments from 50 to 
70 granule or particles of 
unfired powder were dri- 
ven through the fcreen. 
} Very few unfired grains of 
powder llruck the fcreen 
There were no marks of 
any unfired powder hav- 
ing reached the fcreen. 
t 
In 
