144 
MINUTES OF PROCEEDINGS OF 
Table XIII. 
Number 
of experiment. 
| Nature 
| of material. 
o 
§ 
i 
'S 
■4-3 
§ 
o 
1 
O 
Ph II 
2 3 
3 -S 
TO 
Q 
*4 
B, wt. to 
overcome 
friction 
of 
motion. 
C, coeffi. of friction 
„ . B 
of motion = p 
I, impact 
of b. 
M, motion of the 
piece 
drawn through 
in inches 
per minute. 
A, mean an¬ 
gular fall of b. 
V, velocity 
of b. 
For each 
expmt. 
i 
i 
tons 
lbs. 
lbs. 
lbs. 
O 
ft. 
1 
> 
419 
per sec 
181 
2 
0-50 
35 
409 
409 
•365 
30 
3*79 
6*7 
3 
399 
1 
591 
182 
2 
0-75 
52-5 
581 
588 
*350 
30 
3*79 
6 
3 
591 
1 
731 
183 
2 
1-00 
70 
721 
724 
•323 
30 
3*79 
4 
3 
721 
1 
it 
1003 
184 
2 
1*25 
87*5 
1008 
1000 
*357 
30 
3*79 
5*3 
3 
'§> 
989 
1 
§ 
1161 
185 
2 
r ^ 
1-50 
105 
1146 
1151 
•343 
40 
6*1 
3 
1146 
1 
§ 
1370 
180 
2 
2 
1*75 
122*5 
1390 
1377 
•351 
60 
6 
3 
ns 
1370 
1 
* 
1649 
187 
2 
EH 
2-00 
140 
1649 
1637 
•365 
60 
5 
3 
1614 
1 
1808 
188 
2 
2-25 
157*5 
1788 
1795 
•356 
60 
... 
6*1 
3 
1788 
1 
1788 
189 
2 
2*50 
175 
1919 
1852 
•331 
60 
M| 
4 . 
3 
- 
1850 
Table 
XIY. 
1 
- 
400 
190 
2 
0-50 
35 
388 
392 
•348 
30 
3*79 
3*7 
3 
388 
1 
537 
191 
2 
0-75 
62*5 
514 
518 
•308 
30 
3*79 
1*5 
3 
504 
1 
• 
637 
192 
2 
g 
1-00 
70 
652 
644 
‘287 
30 
3*79 
1 
3 
642 
1 
ll 
746 
193 
2 
1-25 
87*5 
711 
723 
•258 
30 
3*79 
1 
3 
2 
711 
1 
850 
194 
2 
* ii) 
1-50 
105 
870 
863 
•257 
30 
3*79 
0*6 
3 
2 
o 
870 
1 
43 
988 
195 
2 
1-75 
122*5 
963 
980 
•250 
30 
3*79 
0*6 
3 
£ 
988 
1 
es3 
1093 
196 
2 
r d 
u 
2-00 
140 
1093 
1093 
•244 
30 
3*79 
0*6 
3 
1093 
1 
£ 
1232 
197 
2 
2*25 
157*5 
1198 
1198 
•238 
33 
0*6 
3 
1163 
1 
1336 
198 
2 
2-50 
175 
1336 
1336 
•239 
30 
3*79 
07 
3 
1336 
