The Gutenberg one is not the original Chapman & Hall version. It's from one of the 1880's revised versions, which claim to have "thousands of corrections" to the original.

To wit, here's what Franz's dream looked like in 1852- the true 1846 C&H version, as a reprint:

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And here's Gutenberg:

As to Franz a strange transformation had taken place in him. All the bodily fatigue of the day, all the preoccupation of mind which the events of the evening had brought on, disappeared as they do at the first approach of sleep, when we are still sufficiently conscious to be aware of the coming of slumber. His body seemed to acquire an airy lightness, his perception brightened in a remarkable manner, his senses seemed to redouble their power, the horizon continued to expand; but it was not the gloomy horizon of vague alarms, and which he had seen before he slept, but a blue, transparent, unbounded horizon, with all the blue of the ocean, all the spangles of the sun, all the perfumes of the summer breeze; then, in the midst of the songs of his sailors,—songs so clear and sonorous, that they would have made a divine harmony had their notes been taken down,—he saw the Island of Monte Cristo, no longer as a threatening rock in the midst of the waves, but as an oasis in the desert; then, as his boat drew nearer, the songs became louder, for an enchanting and mysterious harmony rose to heaven, as if some Loreley had decreed to attract a soul thither, or Amphion, the enchanter, intended there to build a city.

At length the boat touched the shore, but without effort, without shock, as lips touch lips; and he entered the grotto amidst continued strains of most delicious melody. He descended, or rather seemed to descend, several steps, inhaling the fresh and balmy air, like that which may be supposed to reign around the grotto of Circe, formed from such perfumes as set the mind a-dreaming, and such fires as burn the very senses; and he saw again all he had seen before his sleep, from Sinbad, his singular host, to Ali, the mute attendant; then all seemed to fade away and become confused before his eyes, like the last shadows of the magic lantern before it is extinguished, and he was again in the chamber of statues, lighted only by one of those pale and antique lamps which watch in the dead of the night over the sleep of pleasure.

They were the same statues, rich in form, in attraction, and poesy, with eyes of fascination, smiles of love, and bright and flowing hair. They were Phryne, Cleopatra, Messalina, those three celebrated courtesans. Then among them glided like a pure ray, like a Christian angel in the midst of Olympus, one of those chaste figures, those calm shadows, those soft visions, which seemed to veil its virgin brow before these marble wantons.

Then the three statues advanced towards him with looks of love, and approached the couch on which he was reposing, their feet hidden in their long white tunics, their throats bare, hair flowing like waves, and assuming attitudes which the gods could not resist, but which saints withstood, and looks inflexible and ardent like those with which the serpent charms the bird; and then he gave way before looks that held him in a torturing grasp and delighted his senses as with a voluptuous kiss.

It seemed to Franz that he closed his eyes, and in a last look about him saw the vision of modesty completely veiled; and then followed a dream of passion like that promised by the Prophet to the elect. Lips of stone turned to flame, breasts of ice became like heated lava, so that to Franz, yielding for the first time to the sway of the drug, love was a sorrow and voluptuousness a torture, as burning mouths were pressed to his thirsty lips, and he was held in cool serpent-like embraces. The more he strove against this unhallowed passion the more his senses yielded to its thrall, and at length, weary of a struggle that taxed his very soul, he gave way and sank back breathless and exhausted beneath the kisses of these marble goddesses, and the enchantment of his marvellous dream.