At no period of his life was the mind of Tasso more active than during his imprisonment. In the absence of all nourishment from the bright world of Nature which he loved so passionately, his fancy could grow and keep itself leafy, like the cress-seed, which germinates and produces its anti-scorbutic foliage on a bit of flannel moistened with water, without any contact with soil or sunlight, in the long Arctic night of the ice-bound ship. With the ravings of madmen ringing in his ears, he composed some of the most beautiful of his writings, both in prose and verse. Among the manuscripts of the British Museum are preserved some of these writings, whose withered vellum pages we turn over with profound pity, as we think of the sad circumstances in which they were composed. The most valuable of these is the manuscript of the _Torrismondo_, in Tasso's own handwriting, and in the original parchment binding. This work was begun before his imprisonment, and it was not finished until the year after his liberation; but the greater part of it was composed in the wretchedness of his cell at Ferrara. The story upon which it is founded is a very harrowing one, a king of the Ostrogoths marrying his own sister, mistaking her for a foreign princess; but it is treated with very inadequate tragic power, and, like the _Aminta_, displays no real action. Its beauty chiefly consists in its choral odes on the vanity of all earthly things, which are exquisitely sad and touching. We hear in them the wild wail of the poet over his own misfortunes, and the vanishing of the dreams of glory which haloed his life. The chorus with which the tragedy winds up--"Ahi! lagrime; Ahi! dolore"--the words appropriately carved upon his tombstone at St. Onofrio--is unspeakably pathetic. It is his own dirge, the cry of a heart whose strings are about to break. It is as untranslatable as the sigh of the wind in a pine forest. If the words are changed, the spell is lost, and the way to the heart is missed.