442 
Proceedings of the Royal Society 
Seaward Slopes on the Morocco Coast. 
Lat. N. 
Depth inward. 
Difference. 
Distance. 
Tangent 
of Angle of 
Slope. 
Angle of | 
From 
Fms. 
To 
Fms. 
Slope. 
33 20 
526 
1964 
1438 
8-0 
0*180 
O 
10 
1964 
2338 
374 
8-0 
0-047 
21 
224 
636 
412 
4-0 
0-103 
6 
636 
386 
-250 
2-0 
- 0-130 
-74 
33 10 
386 
768 
382 
5-0 
0-076 
44 
768 
1095 
327 
4'0 
0-082 
4 | 
1095 
2060 
965 
10-0 
0-097 
61 
664 
787 
123 
3-0 
0-041 
21 
32 40 
787 
1050 
263 
2-0 
0131 
71 
1050 
1325 
275 
6-0 
0-046 
2 f 
220 
600 
380 
2-0 
0-190 
11 
600 
892 
292 
7*0 
0-041 
24 
32 15 
892 
1290 
398 
5-0 
0-080 
4 f 
1290 
1405 
115 
5*0 
0-023 
U 
1405 
1620 
215 
8-0 
0-027 
106 
220 
114 
2-0 
0-057 
H 
220 
596 
376 
9-0 
0-041 
24 
596 
780 
184 
5-0 
0-036 
2 
32 0 
780 
843 
163 
4-0 
0-041 
24 
843 
995 
138 
3*0 
0-046 
2f 
995 
1640 
645 
14-0 
0-046 
2 f 
1640 
1763 
123 
10-0 
0-012 
i 
The soundings off the west coast of Morocco which are given in the 
second table were taken too far apart to give anything more than 
rough averages of the slope. They indicate, however, a feature of 
continental slopes which calls for further and minute investigation. 
Roughly speaking, the sea bottom slopes very gently from the coast- 
line to a depth of 100 fathoms; between 100 and 500 fathoms a 
steep descent is met with. From 500 to 700 or 800 fathoms the 
angle of slope is smaller, and between 800 and 1200 fathoms it 
again becomes steeper, and flattens between 1200 and 1500 fathoms, 
sometimes becoming again steeper below 1500 fathoms. From the 
continental profiles which we have, the existence of these terraces 
seems to be very probable. It is to be hoped that, in future work, 
the soundings will be made so close to one another that this matter 
may be put out of doubt. 
In the accompanying map (Plate XII.) the positions of the banks 
