34 
THE FRESH-WATER LOCHS OF SCOTLAND 
living observer to the waggon and the clock, and the record is 
absolutely continuous. 
Figs. 11 and 12 will give an idea how the instrument is mounted 
by the lake-side, so as to resist the combined efforts of rain, wind, 
and waves to make an end of the observations of the limnographer. 
Fig. 9. 
The precautions taken were by no means unnecessary, for, as already 
mentioned, in November 1904 part of the Sarasin limnograph under 
Mr Wedderburn's charge on I.och Treig was destroyed during a storm, 
and there were times during the months of August and September 
1905 when I trembled for the security of our installations. 
Fig. 13 shows a form of limnograph which I devised for investi- 
gating the nature of the embroidery on the limnograms. It consists 
