I was intrigued about Aunt Maud's book of verse and its Index.
I considered that it might refer to an Index of First Lines and the book, an Anthology.
Google-search suggested to me two possible editions: The Oxford Book of English Verse; Harvard's Classics 
 
Here is a sample:
 
MOON
William Wordsworth, To the Moon (on the coast of cumberland )
THE Crescent-moon, the Star of Love,

Robert Graves (1895–1985).  Fairies and Fusiliers.  1918. The Cruel Moon
THE CRUEL Moon hangs out of reach

Carl Sandburg. Cornhuskers
THE BABY moon, a canoe, a silver papoose canoe, sails and sails in the Indian west.
 
separate entries:
TSEliot: Prufrock : I OBSERVE: “Our sentimental friend the moon!
 
MOONSHINE
Samuel Taylor Coleridge  Song CLXVIII
The moonshine stealing o'er the scene
Had blended with the lights of eve;
both in Oxford Book of English Verse; Harvard Classics

John Gay. 1688–1732  439. Song
O RUDDIER than the cherry!
O sweeter than the berry!
    O nymph more bright
    Than moonshine night,
Like kidlings blithe and merry!         5
Oxford Anthology

James Russell Lowell . The Courtin’
GOD makes sech nights, all white an’ still
  Fur ’z you can look or listen,
Moonshine an’ snow on field an’ hill,
  All silence an’ all glisten.
 
Matthew Arnold, Philomela: And moonshine, and the dew,
To thy rack'd heart and brain
 
MOOR
Percy Bysshe Shelley: Remorse
AWAY! the moor is dark beneath the moon,
(both in The Oxford Book of English Verse and in Harvard's Classics)

William Worsdworth:  Hart Leap Well
THE Knight had ridden down from Wensley Moor

Thomas Hardy (1840–1928).  Wessex Poems and Other Verses.  1898.A Meeting with Despair
AS evening shaped I found me on a moor

Robert Burns Song 415
THE LAST time I came o’er the moor,
Harvard's Classics

MORAL
Wordsworth: ON THE FINAL SUBMISSION OF THE TYROLESE
          IT was a 'moral' end for which they fought;
          Else how, when mighty Thrones were put to shame,
SONNETSUPON THE PUNISHMENT OF DEATHIN SERIES, 1839VIII         
FIT retribution, by the moral code
Determined, lies beyond the State's embrace,
John Drinkwater. 1882– 126. Reciprocity
I DO not think that skies and meadows are Moral, or that the fixture of a star
 
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