Several recent articles have called attention once more to the problems presented by Spenser's Mutabilitie. Two of them, by Ronald B. Levinson and Evelyn May Albright, deal with certain portions of a series of three essays which I published several years ago, and concern Spenser's use of materials drawn from various sources on the general subject of what Mr. Grierson has called metaphysical poetry. Three others, by Miss Albright, H. M. Belden, and by Miss Albright in reply to Mr. Belden, raise questions concerning the dating of the poem and its relation to Harvey's criticism of the first draft of the Faerie Queene. Since with the single exception of the problem of historical allegory, no topic in Spenser criticism is of comparable interest just now, it is important to review the present state of the inquiry and to consider what remains to be done.