SEICHES AND OTHER OSCILLATIONS 73 
with a velocity of 17 to (mile/hour), i.e. with a velocity of 33 to 51 
along the lake. The sections of the disturbance at Killin and 
Lochearnhead on the one hand, and at Ardtrostan on the other, were 
J^/voU-vo^^tam. // -8 OS. 
y hts 
9 
/o 
/o 
/ 
2 CM. 
7 
6 
3 
X 
- CM. 
J^Ayrvcrct^ //' 8 ' 05. 
/<9 
jr- CM- 
7 ^TS 
Fig. 25. 
very different. The minimum was rounded and pretty flat at the two 
former places, but cuspidal at the latter. Again, at Killin and 
Lochearnhead the minimum was followed by a sharp-pointed 
maximum, with an almost perpendicular rise, while at Ardtrostan the 
