AIE TO THE MOTION OE ELONGATED PROJECTILES. 
425 
(1) Hemispherical-headed Shot. Diameter 4*7 inches. 
Round 1. Weight of shot 39 ‘34 lbs. 
Reading. 
Correc- 
tion. 
Corrected reading. 
1 
2 
4-91 
20-82 
0 
0 
20-820 — 7<f 
36-660 67 
52-433 *".'73 64 
68-142 . ^‘709 -61 
3 
36-65 
+■010 
4 
52-44 
-•007 
5 
68-14 
+•002 
6 
83-79 
0 
88-790 + 15 ' 648 
20 
2- 5 
30 
3- 5 
40 
Interpolation. 
20-820 
28-748 
36-660 
44-555 
52-433 
7-912 
7-895 
+7-878 
-17 
-17 
Time-table obtained 
by interpolation. 
2-5 
2-6 
2-7 
2-8 
2- 9 
3- 0 
3-1 
3-2 
3-3 
3-4 
3-5 
3-6 
3-7 
4-0 
28-748 
30- 332 
31- 915 
33-497 
35- 079 
36- 660 
38- 240 
39- 820 
41- 399 
42- 977 
44-555 
46132 
47-708 
49- 284 
50- 859 
52-433 
+ 1-584 
1-583 
1-582 
1-582 
1-581 
1-580 
1-580 
1-579 
1-578 
1-578 
1-577 
1-576 
1-576 
1-575 
+ 1-574 
Screens. 
No. 
Reading. 
Correction. 
Corrected reading. 
1 
2 
28-26 
30-26 
0 
+ •002 
28-260 
30-262 
Ai. 
+2-002 
2-030 
+& 
3 
32-30 
-•008 
32-292 
28 
4 
34-35 
0 
34-350 
onof 
28 
5 
36-43 
+•006 
36-436 
J'Doo 
9-1 1/1 
28 
6 
38-54 
+ 010 
38-550 
27 
7 
40-76 
* 
40-691 
0-1R7 
26 
8 
42-86 
-•002 
42-858 
26 
9 
10 
45-06 
47-26 
-•009 
+•010 
45-051 
47-270 
2-193 
+2-219 
+26 
Having thus obtained the space described by the clock marker at the end of every 
tenth of a second, from 2"-5 up to 4"*0, we can calculate the times when the screens 
were passed as follows : — 
Screen 
1 
28-260 passed at 2-5 - 488 x -01 -2-4692 
1584 
.» 
2 
30-262 passed at 2-6 — 01 = 2-5956 
.» 
3 
32-292 passed at 27+ — X-01 =2-7238 
.. 
4 
34-350 passed at 2-8+ -^X 01 =2-8539 
1582 
5 
36-436 passed at 3-0 - ^Lx '01 = 2-9858 
6 
38-550 passed at 3-l+^x01=31196 
7 
40-691 passed at 3-2+^Lx -01 =3-2552 
8 
42-858 passed at 3-4-J^X'Ol =3-3925 
9 
45 051 passed at 3-5+i^X -01 =3-5315 
1577 
“ 
10 
47-270 passed at 3-7-^X’Ol =3-6722 
00000 
+1264 
A„. 
•1264 
1282 
+ 18 
•2546 
1301 
19 
•3847 
1319 
18 
•5166 
1338 
19 
•6504 
1356 
18 
•7860 
1373 
17 
•9233 
1390 
17 
1-0623 
1-2030 
+1407 
+ 17 
3 N 
MDCCCLXVIII. 
