212 
Mr. Davies Gilbert on the 
to any required height, and rendered inflexible by diagonal 
braces ; and if further means were required for imparting 
stability, such braces might be adjusted with screws to the 
suspension rods themselves, after these rods had acquired 
their exact positions, on the completion of the work. 
y = 
Table I.— 
100. 
Ordinary Catenary. 
a. 
N. 
X . 
2. 
T. 
Angle. 
2000 
1 .051271 
2.50051 I 
100.041474 
2002.500511 
0 a 
87 8 1 1 
195 ° 
1.052619 
2.564593 
100.042440 
I 952. 564593 
87 3 46 
1900 
1 .054041 
2.632163 
100.045727 
1902.632163 
86 59 8 
1850 
1 •° 5554 I 
2.703298 
100.047540 
1852.703298 
86 54 15 
1800 
1 .057127 
2.778421 
100.050163 
1802.778421 
86 49 6 
1750 
1 .058807 
2.857914 
100.054318 
1752.8579H 
86 43 40 
1700 
1.060588 
2.942018 
100.057566 
1702.942018 
86 37 53 
1650 
1 .062,480 
3.031204 
100.060788 
1653.031204 
86 31 46 
1600 
1 .064494 
3-125974 
100.064421 
1603.125974 
86 25 16 
1550 
1 .066642 
3.226852 
100.068245 
1553.226852 
86 18 21 
1500 
1 .068939 
3-334558 
100.073939 
i 5 ° 3 - 33455 8 
86 10 59 
I 4 S° 
1 .071399 
3.4496 18 
100.078929 
1453.4496i8 
86 3 6 
1400 
1 .074041 
3 - 57 2 9°7 
100.084490 
1403.572907 
85 54 39 
135 ° 
1 .076886 
3-705344 
100.090750 
i 353 . 7 0 5344 
85 45 35 
1300 
1.079958 
3.847958 
ICO. 097440 
1303.847958 
85 35 45 
1250 
1 .083286 
4.002035 
100. 105463 
1254.002035 
85 25 16 
1200 
1 .086903 
4. 168981 
100. I 14680 
1204.168981 
85 13 5 i 
1 150 
1 .090849 
4 - 350 S 43 
100.125801 
1154-350,43 
85 1 26 
1 100 
1 .095169 
4.548545 
100. 137346 
1104.548545 
8-)- 47 54 
1050 
1 .099920 
4.765440 
100. 150553 
1054.765440 
84 33 5 
1000 
1 . 105170 
5.004084 
100. 165906 
1005.004084 
84 16 48 
y_ 
The column in Table I. marked N (where the numbers equal e a )is given as 
the medium conducting to all the subsequent calculations. 
