1918-19.] The Propagation of Earthquake Waves, 
199 
Appendix. 
Table B.— Tracing of Seismic Rays, with Times of Transit. 
Primary Wave. 
Ray. 
Polar Co-ordinates. 
Cartesian 
Co-ordinates. 
r dr 
pd. 
Time. 
Radius. 
Radian. 
Degree. 
r. 
d. 
e. 
X . 
y • 
P. I 
1*00 
o-oooo 
o / 
0 0 
1-000 
0*000 
jj = 664'8 
•97 
•0427 
2 27 
•969 
•0415 
14-63 
28-4 
43 
0 = 48° 41' 
•94 
•1205 
6 54 
•933 
T13 
22-46 
80T 
1026 
•935 
T695 
9 43 
•922 
T58 
22-96 
112-7 
135-7 
•94 
•2184 
12 31 
•918 
•204 
168-8 
•944 
•2591 
14 51 
•923 
•245 
200 
•97 
•2962 
16 58 
•928 
•283 
228-4 
1-00 
. -3389 
19 25 
•943 
•332 
271-4 
P. II 
1-00 
o-oooo 
0 0 
1-000 
o-ooo 
p = 598 
•97 
•0332 
1 54 
•97 
•032 
17T2 
9-85 
37 
0 = 42° 32' 
•94 
•0801 
4 35 
•937 
•075 
29*87 
47-9 
77-8 
•91 
•1724 
9 53 
•896 
T57 
37 22 
103T 
140-3 
•905 
•2311 
13 14 
•881 
•207 
37-79 
138*2 
176-0 
•909 
•2705 
15 30 
•876 
•243 
200 
•91 
•2898 
16 36 
•872 
•260 
211-7 
•94 
•3821 
21 54 
•872 
•351 
274-2 
•959 
•4118 
23 36 
•879 
•384 
300 
•97 
•4290 
24 35 
•882 
•404 
315-0 
1-00 
•4622 
26 29 
•895 
•446 
352-0 
P. Ill 
1-00 
o-oooo 
0 0 
1-000 
o-ooo 
j? = 445 
•97 
•0197 
1 8 
•97 
•019 
21-02 
8-76 
29-8 
0 = 30° 18' 
•94 
•0443 
2 32 
•939 
•042 
38-95 
19-71 
58-7 
•91 
•0756 
4 20 
•907 
•069 
53-81 
33-64 
87*5 
•88 
•1176 
6 44 
■874 
•104 
66*06 
52-33 
118-4 
•85 
•1746 
10 3 
•837 
T48 
75-40 
77-69 
153T 
•823 
•2695 
15 26 
•793 
•219 
200 
•82 
•2863 
16 24 
•785 
•232 
80-94 
127-4 
208-3 
•815 
•3573 
20 28 
•764 
•285 
81-41 
159-0 
240-4 
•82 
•4283 
24 32 
•746 
•341 
272-5 
•836 
•4840 
27 44 
•734 
•386 
300 
•85 
•5400 
30 56 
•729 
•437 
327:7 
•88 
•5970 
34 8 
•728 
•494 
362-4 
•91 
•6390 
36 37 
•730 
•543 
393-3 
•915 
•6444 
36 55 
•732 
•550 
... 
400 
•94 
•6703 
38 24 
•738 
. -5S4 
432-1 
•97 
'6949 
39 49 
•744 
•622 
452-0 
1-00 
•7146 
40 57 
•755 
•655 
480-8 
P. IV 
1-00 
o-oooo 
0 0 
1-000 
o-ooo 
V = 396-6 
•97 
•0173 
0 59 
•97 
•017 
22 
6-76 
28-8 
0 = 26° 39' 
•94 
•0375 
2 9 
•939 
•035 
41*08 
14-7 
55-8 
•91 
•0625 
3 35 
•908 
•057 
57 6 
24-4 
82-0 
•88 
•0936 
5 22 
•877 
•081 
71-78 
36-6 
108-4 
•85 
1333 
7 38 
•842 
•113 
83-69 
521 
135-8 
•82 
•1868 
10 42 
•807 
1 
•152 
93-20 
73-0 
166-2 
