No one could have known better than Tennyson that the cicala is loudest
in the torrid calm of the noonday, as Theocritus, Virgil, Byron and
innumerable other poets have noticed; at last he altered it, but at the
heavy price of a cumbrous pleonasm, into "and the winds are dead".

He allowed many years to elapse before he corrected another error in
natural history--but at last the alteration came. In 'The Poet's Song'
in the line--


The swallow stopt as he hunted the _bee_,


the "fly" which the swallow does hunt was substituted for what it does
not hunt, and that for very obvious reasons. But whoever would see what
Tennyson's poetry has owed to elaborate revision and scrupulous care
would do well to compare the first edition of 'Mariana in the South',
'The Sea-Fairies', 'OEnone', 'The Lady of Shalott', 'The Palace of Art'
and 'A Dream of Fair Women' with the poems as they are presented in
1853. Poets do not always improve their verses by revision, as all
students of Wordsworth's text could abundantly illustrate; but it may be
doubted whether, in these poems at least, Tennyson ever made a single
alteration which was not for the better. Fitzgerald, indeed, contended
that in some cases, particularly in 'The Miller's Daughter', Tennyson
would have done well to let the first reading stand, but few critics
would agree with him in the instances he gives. We may perhaps regret
the sacrifice of such a stanza as this--

Each coltsfoot down the grassy bent, Whose round leaves hold the