MINUTES OE PROCEEDINGS OF 
Table VII. 
GENERAL SUMMARY OF SERIES «, ONE TON PRESSURE, FOE TWO SURFACES. 
Oak. 
Elm. 
Teak. 
Material through which 
drawn. 
Surface. 
Surface. 
Surface. 
64" 
32" 
16" 
4" 
64" 
32" 
16" 
4" 
64" 
32" 
16" 
4" 
Oak:— 
Mean value of B, lbs,... 
871 
759 
718 
690 
924 
797 
730 
657 
947 
759 
730 
670 
Coefficient . 
•388 
•339 
•320 
•312 
•412 
•356 
•326 
•293 
•422 
•339 
•326 
•299 
Motion per minute, ins. 
20 
36 
180 
— 
10 
25 
160 
14 
2-8 
16 
36 
25 
Elm : — 
Mean value of JR, lbs,... 
853 
796 
809 
— 
907 
782 
699 
— 
1069 
809 
748 
604 
Coefficient . 
•380 
•351 
•361 
— 
•405 
•349 
•312 
— 
•477 
•361 
•334 
•270 
Motion per minute, ins. 
15 
30 
60 
— 
9 
17 
73 
— 
2-4 
12 
30 
20 
Teak:— 
Mean value of B, lbs.... 
856 
780 
710 
675 
776 
763 
694 
690 
1067 
846 
768 
671 
Coefficient . 
•382 
•348 
•317 
•301 
•346 
•340 1 
•310 
•308 
•476 
•380 
•343 
•300 
Motion per minute, ins. 
6 
8 
17 
4 
2-3 
6! 
13 
6 
4 
9 
12-6 
9 
Pine 
Mean value of B, lbs.... 
1221 
1037 
1251 
897 
1159 
1020 
1107 
883 
1060 
1010 
1100 
883 
Coefficient .. 
•545 
•463 
•563 
•400 
•517 
•450 
•494 
•394 
•473 
•451 
•492 
•394 
Motion per minute, ins. 
13 
17 
60 
33 
12 
16 
30 
30 
6 
12 
30 
40 
Wrought Iron:— 
Mean value of B , lbs.... 
764 
677 
510 
781 
635 
630 
444 
677 
625 
548 
449 
513 
Coefficient . 
•341 
•302 
•228 
•349 
•283 
•281 
•198 
•302 
•279 
•245 
•200 
•229 
Motion per minute, ins. 
1-25 
4-5 
1-8 
— 
0-88 
0-2 
1-25 
— 
113 
1-6 
1*4 
3 
Gun Metal:— 
Mean value of B , lbs.... 
646 
618 
673 
_ 
600 
515 
409 
— 
486 
454 
537 
780 
Coefficient . 
•288 
•276 
•256 
_ 
•268 
•230 
•182 
_ 
•217 
•203 
•239 
•348 
Motion per minute, ins. 
0-8 1 
1-13 
0-8 
— 
0-37 
0*8 
I 0 1 63 
— 
0-37 
0*7 
0*37 
4 
Oak: — 
Pine. 
Wrought-iron. 
Gun-metal. 
Mean value of B, lbs.... 
1065 
947 
1100 
— 
605 
j 689 
728 
714 
739 
699 
870 
847 
Coefficient . 
•475 
•423 
•491 
— 
•270 
•307 
•325 
•318 
•329 
•312 
•388 
•378 
Motion per minute, ins. 
6 
18 
40 
— 
6 
6 
6 
12 
3-3 
6 
0-75 
6 
Elm 
Mean value of B, lbs.... 
1195 
988 
1150 
.— 
603 
717 
620 
851 
700 
752 
775 
972 
Coefficient . 
•533 
•441 
•513 
— 
•270 
•320 
•276 
•380 
•312 
•335 
•346 
•438 
Motion per minute, ins. 
9 
18 
32 
— 
0-9 
3-4 
4-4 
10 
0-5 
4-3 
0-5 
11 
Teak :— 
Mean value of JR, lbs.... 
1129 
966 
1122 
—i 
617 
656 
660 
617 
620 
600 
638 
595 
Coefficient . 
•504 
•431 
•500 
— 
•275 
•337 
•250 
•275 
•280 
270 
•240 
•265 
Motion per minute, ins. 
5 
12 
38 
— 
1-6 
2 
3 
4 
0-5 
0-8 
0*5 
0-5 
Pine 
Mean value of B } lbs..,. 
1224 
1087 
1196 
643 
640 
683 
621 
824 
687 
669 
798 
Coefficient . 
•546 
•486 
•534 
•287 
•286 
•260 
•277 
•368 
•307 
•298 
•356 
Motion per minute, ins. 
11 
15 
60 
2-1 
2-8 
3-5 
3*5 
0-5 
0-7 
0-7 
0-5 
Wrought Iron: — 
Mean value of B , lbs.... 
630 
695 
617 
— 
1457 
1059 
1076 
1275 
936 
839 
809 
916 
Coefficient . 
•281 
•266 
•276 
— 
•650 
•481 
•480 
•668 
•418 
•375 
•361 
•408 
Motion per minute, ins. 
1*0 
1-6 
1-0 
__ 
30 
40 
12 
— 
0-37 
0-25 
0-25 
0-44 
Gun Metal:— 
Mean value of B } lbs.... 
824 
643 
570 
— 
879 
871 
882 
958 
1729 
1495 
1791 
1245 
Coefficient . 
•368 
•287 
•255 
— 
•393 
•388 
•393 
•428 
•771 
•660 
•800 
•556 
Motion per minute, ins. 
0-63 
1-17 
0-7 
— 
0-21 
0*21 
0*14 
0-75 
30 
1-25 
20 
— 
