[These remarks on Mrs. Shelley's Novel Frankenstein appeared in The Athenæum for the 10th of November, 1832, and in The Shelley Papers; but Mrs. Shelley, for obvious reasons, did not include the essay when publishing her husband's prose writings. Mr. Rossetti (Poetical Works, Vol. I, page 150) assigns the composition to the year 1817. The first edition of Frankenstein is dated 1818; but of course Shelley had plenty of opportunities of seeing it while in progress.—H. B. F.]