Toward the end of June the two poets made the tour of Lake Geneva in their boat, and were very nearly wrecked off the rocks of Meillerie. On this occasion Shelley was in imminent danger of death from drowning. His one anxiety, however, as he wrote to Peacock, was lest Byron should attempt to save him at the risk of his own life. Byron described him as “bold as a lion;” and indeed it may here be said, once and for all, that Shelley’s physical courage was only equalled by his moral fearlessness. He carried both without bravado to the verge of temerity, and may justly be said to have never known what terror was. Another summer excursion was a visit to Chamouni, of which he has left memorable descriptions in his letters to Peacock, and in the somewhat Coleridgian verses on Mont Blanc. The preface to _Laon and Cythna_ shows what a powerful impression had been made upon him by the glaciers, and how he delighted in the element of peril. There is a tone of exultation in the words which record the experiences of his two journeys in Switzerland and France:--“I have been familiar from boyhood with mountains and lakes and the sea, and the solitude of forests. Danger, which sports upon the brink of precipices, has been my playmate. I have trodden the glaciers of the Alps, and lived under the eye of Mont Blanc. I have been a wanderer among distant fields. I have sailed down mighty rivers, and seen the sun rise and set, and the stars come forth, whilst I have sailed night and day down a rapid stream among mountains. I have seen populous cities, and have watched the passions which rise and spread, and sink and change amongst assembled multitudes of men. I have seen the theatre of the more visible ravages of tyranny and war, cities and villages reduced to scattered groups of black and roofless houses, and the naked inhabitants sitting famished upon their desolated thresholds.”
On their return to the lake, the Shelleys found M. G. Lewis established with Byron. This addition to the circle introduced much conversation about apparitions, and each member of the party undertook to produce a ghost story. Polidori’s _Vampyre_ and Mrs. Shelley’s _Frankenstein_ were the only durable results of their determination. But an incident occurred which is of some importance in the history of Shelley’s psychological condition. Toward midnight on the 18th of July, Byron recited the lines in _Christabel_ about the lady’s breast; when Shelley suddenly started up, shrieked, and fled from the room. He had seen a vision of a woman with eyes instead of nipples. At this time he was writing notes upon the phenomena of sleep to be inserted in his _Speculations on Metaphysics_, and Mrs. Shelley informs us that the mere effort to remember dreams of thrilling or mysterious import so disturbed his nervous system that he had to relinquish the task. At no period of his life was he wholly free from visions which had the reality of facts. Sometimes they occurred in sleep and were prolonged with painful vividness into his waking moments. Sometimes they seemed to grow out of his intense meditation, or to present themselves before his eyes as the projection of a powerful inner impression. All his sensations were abnormally acute, and his ever-active imagination confused the border-lands of the actual and the visionary. Such a nature as Shelley’s, through its far greater susceptibility than is common even with artistic temperaments, was debarred in moments of high-strung emotion from observing the ordinary distinctions of subject and object; and this peculiar quality must never be forgotten when we seek to estimate the proper proportions of _Dichtung und Wahrheit_ in certain episodes of his biography. The strange story, for example, told by Peacock about a supposed warning he had received in the spring of this year from Mr. Williams of Tremadoc, may possibly be explained on the hypothesis that his brooding thoughts had taken form before him, both ear and eye having been unconsciously pressed into the service of a subjective energy.[14]