Hyppolito had one consolation—his father never doubted him; if he had, one glance of his son's clear, though sad eye, and candid, open brow, would have reassured him. He saw there was a mystery, but he was sure it involved no guilt on Hyppolito's part. Hyppolito also believed that his good name would one day be cleared, and that his noble Dianora would in due time remove the stain that clouded it. He consented to die, rather than live separated from her. Yet poor Hyppolito was sorry to leave the world so young; and sadly, though calmly, he arranged his small possessions, for the benefit of those he loved, and of the poor, to whom he had always been a friend.
He slept quietly the night preceding the time fixed for his execution, and was early ready to take his place in the sad procession. Did no thought cross Hyppolito's clear mind, that he was throwing away, in weak passion, a life given to him by God for noble ends? We know not; but there he was—calm, firm, and serious. His only request was, that the procession might pass through the street of the Bardi, which some thought was a sign of penitence, an act of humiliation. The sad train moves on. An old man sitting at a door rises, strains his eyes to catch a last glimpse of Hyppolito, and then covers them in anguish, and sinks down again. This is an old man he had saved from misery and death. Two youths, hand-in-hand, are gazing with sad faces, and tears run down their cheeks. They are orphans: he had clothed and fed them. Hyppolito sees them, and even in that moment remembers it is he who deprives them of a protector: but it is too late to think now; for he is approaching the scene of his fault and the place of his punishment, and other feelings swell in his heart. His brows are contracted; his eyes bent on the house of the Bardi, as if they would pierce the stones of its walls; and now they are cast down, as though he would raise them no more on earth. But he starts, for he hears a loud shriek, a rushing, and an opening of the crowd: they seem to be awed by something that approaches. It is a woman, whose violent gestures defy opposition; she looks like a maniac just escaped from her keepers; she has reached Hyppolito; his fettered arms move as if they would receive her, but in vain. She turns to the crowd, and some among them recognize the modest and beautiful daughter of Bardi. She calls out: "He is innocent of every crime but having loved me. To save me from shame, he has borne all this disgrace. And he is going to death; but you can not kill him now. I tell you he is guiltless; and if he dies, I die with him."
The people stand amazed. At last there is a shout: "It must be true! he is innocent!" The execution is stopped til the truth is ascertained, and Dianora's statement is fully confirmed. And who shall paint the return from death to life of poor Hyppolito? and to such a life! for blazoned as the story of her love had been, Dianora's parents, considering also her firm character, subjected even the spirit of party to the voice of affection and reason; and Hyppolito's family, softened by sorrow, gladly embraced their Ghibelline daughter. Whether in after-life Hyppolito and Dianora were distinguished by the qualities they had shown in youth, and whether the promise of affection was realized by time and intimate acquaintance, no chronicle remains to tell. This short glimpse of both is all that is snatched from oblivion—this alone stands out in bright relief, to show us they once were; the rest is lost in the darkness of time.
The moment chosen by the artist is when Dianora rushes from her house into the midst of the crowd, and reaches Hyppolito, surrounded by priests and soldiers. It is easy to see to what a varied expression of passion and action this point of the story gives rise.
[A CURIOSITY IN NATURAL HISTORY.]
The crustacean class of animals, of which the lobster, crab, and shrimp are familiar examples, have this peculiarity of structure—that their soft bodies are inclosed within a coat-of-mail formed of carbonate and phosphate of lime. In fact, they carry their skeleton outside their bodies, both for defense of the vital parts within, and for the attachment of the muscles which move their limbs, and every part of their frame. No warrior of old was ever more completely enveloped in his hard coat-of-mail, with its jointed greaves and overlapping scales, than is the lobster in its crustaceous covering; with this exception, that the warrior could at pleasure unbuckle himself from his armor, whereas the body and limbs of the crustacea are completely incased in hollow cylinders, firmly and accurately jointed, from which there is no such ready release. Now, as this shelly integument envelops them from their earliest youth, and as it does not expand and grow, the natural growth of the soft body beneath would be entirely prevented did not nature supply a remedy of a very curious kind—the exuviation, or periodical throwing off of the external crust, and the formation of a larger shell-covering fitted for the increasing growth of the animal. This is a circumstance which has long been familiar to naturalists, and indeed the most ordinary observer must have often remarked in the crabs and lobsters brought to table, appearances indicative of their change of external coverings. In the back of the edible crab, may often be noticed a red membrane lining the inner side of the shell, but so loose as to be readily detached. Along the greater part of its course this membrane has already assumed a half-crustaceous consistence, and is just the preparatory process to the old shell being thrown off by the animal. There is another curious circumstance which has also been long known—that crabs and lobsters can renew lost limbs. Some misconception, however, had existed regarding the manner in which this was effected, until the observations of the late Sir John Dalyell have thrown more accurate light upon the subject.
This most amiable and eminent zoologist, who was lost to science last year, afforded a pleasing illustration of the solace and delight which the pursuit of the study of nature yields to the diligent inquirer into her mysteries. With a feeble constitution and frame of body, which precluded his mingling in the more active pursuits of every day life, this sedentary philosopher collected around him examples of minute and curious being from the depths of the ocean, from lake and river, and for many long years found the delight of his leisure hours in watching the habits of the animals, and in discovering and describing many singular circumstances in the constitution of their bodies, and the peculiar adaptations of their structure and instincts to their modes of existence. One of his last communications to the public, imparted with all the modesty and simplicity of true genius, at the last meeting of the British Association in Edinburgh, was on this subject of the exuviation of the crustacea.
It appears from Sir John's observations that crustaceans begin to throw off their shells at a very early period of their life, even in that embryo state in which they first appear after having left the egg, and before they have yet assumed that real form of their mature state. During every successive exuviation in this embryo state they assume more and more of their perfect and established form. While the crab is young and rapidly growing, frequent exuviations take place at short intervals, from three to five times in the course of one year. Previous to the change, the animal almost ceases to feed, and becomes rather inactive; the proper time having at length arrived, exuviation is effected in the course of a few hours, body and limbs being alike relieved from their hard covering. Until the new shell acquires firmness and strength, the creature is very shy, and in the state of nature, retires into cavities below rocks or heaps of protecting sea-weed. Sir John had kept for some time one of our smaller species of shore-crabs (Carcinus monas), of medium size, of a brown color, with one white limb. One summer evening it was put outside the window in a capacious glass-vessel of sea-water. In the morning a form exactly resembling its own, only somewhat larger, lay in the vessel. This was the same animal, which had performed exuviation, and extricated itself from the old shell during the night. The resemblance between both forms was complete—every thing was the same, even the white limb was seen in both. Another specimen kept was of smaller size, the opposite extremities of the limbs being only thirteen lines asunder; its color was green, with three white patches on the back. In the course of little more than a year five exuviations took place at irregular intervals, the new shell and animal becoming larger each time. The third shell came on uniformly green, the white spots being entirely obliterated. On the fourth exuviation, the limbs expanded two inches and a half. From the long slender form of the limbs of crustacea, they are very liable to mutilation. Crabs are also a very pugnacious family, and in their battles limbs are often snapped off. These mutilations, however, are readily repaired; although, contrary to what was the common belief, the restoration takes place only at the next regular period of exuviation.
The full-grown common crab (Cancer pagurus) is of a reddish-brown color, the claws tipped black; but some of the young are naturally of the purest white, which remains long unsullied. This does not arise from confinement, which, according to Sir John, has no influence on color. "A young white specimen of the common crab was subjected to observation on 29th September. The body might have been circumscribed in a circle three-quarters of an inch in diameter, and the extended limbs by one and a half inch in diameter. Its first exuviation ensued on 8th November, the second on the 30th of April following, and the shell then produced subsisted till 12th September, when another exuviation took place, introducing a new shell of such transparent white that the interior almost shone through it. All the shells were white, and increased somewhat in size successively. This last shell of 12th September subsisted until 29th March, being 197 days, when it was thrown off during another exuviation."