Any one who has tried to trace out the allusions in the "Poems on the Naming of Places," or to discover the site of "Michael's Sheepfold," to identify "Ghimmer Crag," or "Thurston-Mere,"--not to speak of the individual "rocks" and "recesses" near Blea Tarn at the head of Little Langdale so minutely described in 'The Excursion',--will admit that local commentary is an important aid to the understanding of Wordsworth. If to read the 'Yew Trees' in Borrowdale itself, in mute repose To lie, and listen to the mountain flood Murmuring from Glaramara's inmost caves, to read 'The Brothers' in Ennerdale, or "The Daffodils" by the shore of Ullswater, gives a new significance to these "poems of the imagination," a discovery of the obscurer allusions to place or scene will deepen our appreciation of those passages in which his idealism is most pronounced. Every one knows Kirkstone Pass, Aira Force, Dungeon Ghyll, the Wishing Gate, and Helm Crag: many persons know the Glowworm Rock, and used to know the Rock of Names; but where is "Emma's Dell"? or "the meeting point of two highways," so characteristically described in the twelfth book of 'The Prelude'? and who will fix the site of the pool in Rydal Upper Park, immortalised in the poem 'To M. H.'? or identify "Joanna's Rock"? Many of the places in the English Lake District are undergoing change, and every year the local allusions will be more difficult to trace. Perhaps the most interesting memorial of the poet which existed, viz. the "Rock of Names," on the shore of Thirlmere, is now sunk under the waters of a Manchester reservoir. Other memorials are perishing by the wear and tear of time, the decay of old buildings, the alteration of roads, the cutting down of trees, and the modernising, or "improving," of the district generally. All this is inevitable. But it is well that many of the natural objects, over and around which the light of Wordsworth's genius lingers, are out of the reach of "improvements," and are indestructible even by machinery.