150 
MINUTES OF PROCEEDINGS OF 
Table XXII. 
Number 
of experiment. 
I Nature 
I of material. 
' 
i 
| N, number of surfaces. 
M, wt. to 
overcome 
friction 
of 
motion. 
C, coefli. of friction 
B 
of motion = p 
J, impact 
of 6. 
M, motion of the 
piece 
drawn through 
in inches 
per minute. 
A, mean an¬ 
gular fall of b. 
V, velocity 
of b. 
j For each 
expmt. 
Mean. 
lbs. 
lbs. 
O 
ft. 
1 
714 
per sec 
287 2 
2 
704 
707 
•631 
30 
3-79 
0*9 
3 
704 
1 
1373 
238 2 
1 
4 
1368 
1375 
1-228 
30 
3-79 
0-2 
3 
1383 
1* 
P 
1 
1 
2088 
239 2 
1 4^ 
6 
2068 
2070 
1-848 
30 
3-79 
0-2 
3 
g 
2053 
*13 
i 
U 
3021 
240 2 
<a 
Eh 
8 
3050 
3062 
2-734 
30 
3-79 
1-1 
3 
3114 
1 
241 2 
10 
3 
Table XXIII 
1 
495 
242 2 
2 
475 
480 
•429 
30 
3-79 
2-26 
3 
470 
1 
1537 
243 2 
2 
4 
1537 
1525 
| 1-362 
30 
3-79 
2-5 
3 
.p 
1502 
^§0 
p 
1 
o 
g 
2343 
244 2 
L ^ 
6 
2378 
2365 
2-103 
30 
3-79 
2-5 
3 
1* 
2343 
p 
1 
1 
pjsj 
3040 
245 2 
Q 
8 
3109 
3063 
2-735 
30 
3-79 
3-5 
3 
EH 
3040 
1 
248 2 
10 
3 
J 
