SEICHES AND OTHER OSCILLATIONS 
37 
In addition to the statoliuniograph, and four index limnographs, 
which were worked at constantly varying points, we had three fixed 
Fig. 12. 
hmnographs — one near St Fillans (the waggon recorder), one near 
the binode (a Sarasin), and one near the uninode (a Sarasin). The 
D 
J 
1 
last, unfortunately, was useless for a good part of the time, partly 
because its clock went out of order, partly because the Sarasin 
Fig. 13. 
