DETERMINATION OF THE LONGITUDINAL SEICHES OF LAKE GENEVA. 639 
was then undertaken by A. T. Doodson, who prepared the table of p(x) and initiated 
the method of calculation as described in the paper ; the integrations were carried 
out chiefly by R. M. Carey, and the rest of the work, together with the exposition 
as given here, was performed by A. T. Doodson. 
Throughout, the authors have experienced much assistance from Professor 
Proudman, and they desire to express their thanks to him. They also desire to 
record their thanks to Dr E. M. Wedderbtjrn for the data provided by him, and 
for the help and suggestions received from him. 
Table I. 
Lake Geneva Measurements, u = 1‘7052 x 10 6 . 
Line. 
South End. 
North End. 
Mid-point. 
ub(x) 
u 2 A(x) 
u 3 p(x) 
10 15 ' 
x. 
Lat. 
Long. 
Lat. 
Long. 
Lat. 
Long. 
5 x 10 5 ' 
5 x 10 9 ’ 
1 
46° 12-9 
3°50-4 
46° 13*3 
3° 49-1 
46° 13-1 
3°49-7 
•370 
•0197 
•0183 
•0071 
2 
13-9 
513 
14-5 
49-0 
14-2 
50-1 
•617 
•1493 
•230 
■0273 
3 
15-2 
51 -5 
157 
49-5 
15-5 
50-5 
•546 
•1742 
•238 
•0507 
4 
15 6 
51-6 
16-3 
50-1 
16-0 
50-8 
•478 
•1455 
T74 
•0583 
5 
16-1 
52-6 
17-2 
50-0 
16-6 
51-3 
•776 
•2224 
•432 
■0730 
6 
16-4 
52-9 
18-0 
50-3 
17 2 
51-6 
•885 
•3101 
•686 
•0870 
7 
17-3 
53-9 
18-8 
51 2 
18-0 
525 
•895 
•4072 
■911 
•1175 
8 
18-2 
54-4 
19-2 
51-7 
18-7 
53-0 
•777 
•3527 
•685 
•1366 
9 
19-5 
55-3 
20-4 
52-3 
20-0 
53-8 
■835 
•3923 
•819 
•1752 
10 
20-7 
56-5 
21-8 
53-2 
21-2 
548 
•931 
. -3401 
•792 
•2189 
11 
21-5 
57-1 
23-2 
548 
223 
53-0 
•899 
•4219 
•948 
■2554 
12 
22T 
58-5 
23-8 
565 
230 
57-5 
•791 
■3422 
•677 
•2875 
13 
22-3 
4° 0'0 
25-3 
57-3 
23'8 
58-7 
1-310 
•5750 
1-883 
•3235 
14 
22-2 
0-8 
25-8 
58 2 
24-0 
59-5 
1-492 
•8211 
3-065 
•3517 
15 
20-5 
3 0 
26-8 
593 
237 
4° l'-l 
2-520 
1-6927 
10-668 
•4198 
16 
21-8 
5-8 
27-9 
4° 2'*6 
24-8 
4-2 
2-456 
2-8707 
17-633 
■6081 
17 
226 
8-4 
28-1 
5-0 
25-3 
6-7 
2-228 
3-4481 
19-207 
•7374 
18 
24-3 
10-2 
28-7 
7-6 
26-5 
8-9 
1-800 
3-3114 
14-901 
•8601 
19 
23-7 
12-7 
31-0 
10-3 
27-3 
115 
2-768 
4-9460 
34-225 
•9968 
20 
23-9 
| 13-8 
30-5 
12-6 
27-2 
13-2 
2-464 
5-2897 
32-58 
1-0903 
21 
24-2 
16-2 
31-1 
15-3 
27*6 
15-8 
2-596 
5-5438 
35-98 
1-2348 
22 
24-4 
19-3 
303 
19-9 
27-3 
19-6 
2-210 
5-5256 
30-53 
1-4360 
23 
24-7 
235 
29-4 
24T 
27-1 
238 
1-830 
4-3035 
19-69 
1-6187 
24 
24-1 
25-6 
28-5 
27-4 
26-3 
26-5 
1-695 
3-6954 
15-66 
1-7317 
25 
23-7 
28-2 
27-5 
30'5 
25-6 
29-3 
1-539 
2-7796 
10-70 
1-8353 
26 
23-3 
29-4 
27 - 2 
31-2 
25-2 
303 
1-505 
2 2963 
8-64 
1 8848 
27 
23-3 
30-6 
26'9 
31-9 
25T 
31-2 
1-386 
1-4072 
4-88 
1-9204 
28 
23-6 
31-9 
26-5 
331 
25-0 
32-5 
1-104 
•9257 
2-555 
1-9457 
29 
23-8 
32-9 
25-8 
34-5 
24-8 
337 
•860 
•5643 
1-212 
1-9603 
30 
23-8 
34-2 
24-8 
35-7 
24-3 
35-0 
•522 
■2134 
•278 
1-9948 
31 
23-7 
35-2 
23-7 
35-2 
23-7 
35-2 
•000 
•0000 
•000 
2-0000 
The latitude and longitude (east of Paris) of the terminal points and of the mid-points of the 
transversals drawn by 'Wedderburn on the map of Geneva are given above. The value of b(x) is the 
breadth of the lakes, A(.r) is the area of the transverse section, and p(x) is the product ; these quantities 
are expressed in lake units. 
