624 
MR. J. F. MILLER ON THE METEOROLOGY OF THE LAKE 
having been confined to the valley the whole of the day by torrents of rain; I have 
consequently not had an opportunity of ascertaining the altitude of Sprinkling Tarn, 
but in 1812 Dr. Dalton states it to be 1860 feet ; and another observation, either by 
Dalton or Otley, gives 1943 feet above the sea. I have therefore allowed the ele- 
vation of 1900 feet, previously given in my tables, to remain unaltered for the pre- 
sent. A complete and authentic table of the heights of onr principal lakes and 
mountains is much wanted. Of the elevations given in the Guide Books to the Lake 
District, some are probably not far from the truth, but others are undoubtedly very 
erroneous ; thus, Ennerdale Lake, by the Whitehaven Waterworks’ Survey, proves to 
be 356 feet above the sea, instead of 246 feet, as stated in one of these treatises, show- 
ing an error or miscalculation of 110 feet. This is, no doubt, an extreme instance ; 
but the altitudes of several of our lakes and mountains are yet unknown ; and a care- 
ful measurement or remeasurement of the whole of them with accurate instruments 
and under favourable circumstances, is very desirable, as the results would be more 
or less interesting and valuable both to the meteorologist and the geologist, the 
botanist and the tourist. 
