In the case of the thirlmere aqueduct, double socketed castings about 12 in.
It is only the tap you turn to let thirlmere come into your basins.
In the thirlmere aqueduct the greatest pressure is nearly 180 ℔ on the square inch, the pipes where this occurs being 40 in.
The ascent of Helvellyn is sometimes begun at the foot of thirlmere.
thirlmere lies in the Vale of Legberthwaite, and the precipices around it are objects of special admiration.
In the thirlmere tunnels, driven through very hard Lower Silurian strata, the progress was about 13 yds.
Beyond those pastures stretched the dark waters of thirlmere, looking like a broad river.
And so on, and all the time it is not wanting to go either to thirlmere or to Penrith, but is sidling crabwise to Keswick.
The turning of thirlmere into a huge reservoir, and the necessary increase of its depth, hid for ever a number of land-marks.
Mrs. Leland looked up, caught his eye with a smile, and asked how many miles it was to thirlmere.