Thy whistle weird perchance may be

A sad and sore necessity,

But cannot Law and sense combine

To—well, in short, to draw the line?—

Across the open let it shrill

From moor to moor, from hill to hill,

But in the tunnel's crypt-like gloom,

The Station's cramped reverberant room,

A gentler, graduated blast!

Do let it loose, whilst dashing past,