628 Proceedings of Royal Society of Edinburgh. [sess. 
is worthy of mention that at one particular place which had to be 
passed on about six different occasions during the time of deep 
snow, the observers were able to walk along the top of a fence wall 
over three miles in length, and so saved tramping through the 
snow, which was level with the cope of the wall. 
The monthly rain gauges used were 8-inch copper “mountain 
rain gauges,” graduated to read 16 inches of rainfall, and made by 
Casella of London. The total depth of the outer case of the 
gauges is 4 feet inches, and when fixed in position, were sunk 
in the ground about 3 feet, and protected from sheep by a stob and 
wire fence forming an area of about 20 feet square. 
The authors are strongly of opinion that when rain gauge read- 
ings have to be taken over a period of years, the period should 
commence and terminate at some other period than the last day of 
December, as at such a time many of the gauges may be found to 
be frozen. 
The authors are glad to be able to state that, upon their recom- 
mendation, the Water Trust have agreed to continue the recording 
of the rainfall at all the seven stations, and they are satisfied that 
the information so obtained will be of great benefit, not only to the 
Trustees themselves, in the event of their afterwards extending 
their area of supply, but also to other local authorities, engineers, 
and others interested in the determination of the many problems 
connected with rainfall which have to be considered in connection 
with questions regarding water supply. 
