As I told you above, the declaration of war was handed over to an Austrian major for transmission to Count Stancowick, the Austrian governor of Mantua, on the evening of the 19th, by Colonel Bariola, sous-chef of the general staff, who was accompanied by the Duke Luigi of Sant' Arpino, the husband of the amiable widow of Lord Burghersh. The duke is the eldest son of Prince San Teodoro, one of the wealthiest noblemen of Naples. In spite of his high position and of his family ties, the Duke of Sant' Arpino, who is well known in London fashionable society, entered as a volunteer in the Italian army, and was appointed orderly officer to General Lamarmora. The choice of such a gentleman for the mission I am speaking of was apparently made with intention, in order to show the Austrians, that the Neapolitan nobility is as much interested in the national movement as the middle and lower classes of the Kingdom, once so fearfully misruled by the Bourbons. The Duke of Sant' Arpino is not the only Neapolitan nobleman who has enlisted in the Italian army since the war with Austria broke out. In order to show you the importance which must be given to this pronunciamiento of the Neapolitan noblemen, allow me to give you here a short list of the names of those of them who have enlisted as private soldiers in the cavalry regiments of the regular army: The Duke of Policastro; the Count of Savignano Guevara, the eldest son of the Duke of Bovino; the Duke d'Ozia d'Angri, who had emigrated in 1860, and returned to Naples six months ago; Marquis Rivadebro Serra; Marquis Pisicelli, whose family had left Naples in 1860 out of devotion to Francis II.; two Carraciolos, of the historical family from which sprung the unfortunate Neapolitan admiral of this name, whose head Lord Nelson would have done better not to have sacrificed to the cruelty of Queen Caroline; Prince Carini, the representative of an illustrious family of Sicily, a nephew of the Marquis del Vasto; and Pescara, a descendant of that great general of Charles V., to whom the proud Francis I. of France was obliged to surrender and give up his sword at the battle of Pavia. Besides these Neapolitan noblemen who have enlisted of late as privates, the Italian army now encamped on the banks of the Po and of the Mincio may boast of two Colonnas, a prince of Somma, two Barons Renzi, an Acquaviva, of the Duke of Atri, two Capece, two Princes Buttera, etc. To return to the mission of Colonel Bariola and the Duke of Sant' Arpino, I will add some details which were told me this morning by a gentleman who left Cremona yesterday evening, and who had them from a reliable source. The messenger of General Lamarmora had been directed to proceed from Cremona to the small village of Le Grazie, which, on the line of the Mincio, marks the Austrian and Italian frontier.

On the right bank of the Lake of Mantua, in the year 1340, stood a small chapel containing a miraculous painting of the Madonna, called by the people of the locality 'Santa Maria delle Grazie.' The boatmen and fishermen of the Mincio, who had been, as they said, often saved from certain death by the Madonna—as famous in those days as the modern Lady of Rimini, celebrated for the startling feat of winking her eyes— determined to erect for her a more worthy abode.

Hence arose the Santuario delle Grazie. Here, as at Loretto and other holy localities of Italy, a fair is held, in which, amongst a great number of worldly things, rosaries, holy images, and other miraculous objects are sold, and astounding boons are said to be secured at the most trifling expense. The Santuario della Madonna delle Grazie enjoying a far-spread reputation, the dumb, deaf, blind, and halt-in short, people afflicted with all sorts of infirmities—flock thither during the fair, and are not wanting even on the other days of the year. The church of Le Grazie is one of the most curious of Italy. Not that there is anything remarkable in its architecture, for it is an Italian Gothic structure of the simplest style. But the ornamental part of the interior is most peculiar. The walls of the building are covered with a double row of wax statues, of life size, representing a host of warriors, cardinals, bishops, kings, and popes, who—as the story runs—pretended to have received some wonderful grace during their earthly existence. Amongst the grand array of illustrious personages, there are not a few humbler individuals whose history is faithfully told (if you choose to credit it) by the painted inscriptions below. There is even a convict, who, at the moment of being hanged, implored succour of the all-powerful Madonna, whereupon the beam of the gibbet instantly broke, and the worthy individual was restored to society—a very doubtful benefit after all. On Colonel Bariola and the Duke of Sant' Arpino arriving at this place, which is only five miles distant from Mantua, their carriage was naturally stopped by the commissaire of the Austrian police, whose duty was to watch the frontier. Having told him that they had a despatch to deliver either to the military governor of Mantua or to some officer sent by him to receive it, the commissaire at once despatched a mounted gendarme to Mantua. Two hours had scarcely elapsed when a carriage drove into the village of Le Grazie, from which an Austrian major of infantry alighted and hastened to a wooden hut where the two Italian officers were waiting. Colonel Bariola, who was trained in the Austrian military school of Viller Nashstad, and regularly left the Austrian service in 1848, acquainted the newly-arrived major with his mission, which was that of delivering the sealed despatch to the general in command of Mantua and receiving for it a regular receipt. The despatch was addressed to the Archduke Albert, commander-in-chief of the Austrian army of the South, care of the governor of Mantua. After the major had delivered the receipt, the three messengers entered into a courteous conversation, during which Colonel Bariola seized an opportunity of presenting the duke, purposely laying stress on the fact of his belonging to one of the most illustrious families of Naples. It happened that the Austrian major had also been trained in the same school where Colonel Bariola was brought up—a circumstance of which he was reminded by the Austrian officer himself. Three hours had scarcely elapsed from the arrival of the two Italian messengers of war at Le Grazie, on the Austrian frontier, when they were already on their way back to the headquarters of Cremona, where during the night the rumour was current that a telegram had been received by Lamarmora from Verona, in which Archduke Albert accepted the challenge. Victor Emmanuel, whom I saw at Bologna yesterday, arrived at Cremona in the morning at two o'clock, but by this time his Majesty's headquarters must have removed more towards the front, in the direction of the Oglio. I should not be at all surprised were the Italian headquarters to be established by to-morrow either at Piubega or Gazzoldo, if not actually at Goito, a village, as you know, which marks the Italian-Austrian frontier on the Mincio. The whole of the first, second, and third Italian corps d'armee are by this time concentrated within that comparatively narrow space which lies between the position of Castiglione, Delle Stiviere, Lorrato, and Desenzano, on the Lake of Garda, and Solferino on one side; Piubega, Gazzoldo, Sacca, Goito, and Castellucchio on the other. Are these three corps d'armee to attack when they hear the roar of Cialdini's artillery on the right bank of the Po? Are they destined to force the passage of the Mincio either at Goito or at Borghetto? or are they destined to invest Verona, storm Peschiera, and lay siege to Mantua? This is more than I can tell you, for, I repeat it, the intentions of the Italian leaders are enveloped in a veil which nobody—the Austrians included—has as yet been able to penetrate. One thing, however, is certain, and it is this, that as the clock of Victor Emmanuel marks the last minute of the seventy-second hour fixed by the declaration delivered at Le Grazie on Wednesday by Colonel Bariola to the Austrian major, the fair land where Virgil was born and Tasso was imprisoned will be enveloped by a thick cloud of the smoke of hundreds and hundreds of cannon. Let us hope that God will be in favour of right and justice, which, in this imminent and fierce struggle, is undoubtedly on the Italian side.

CREMONA, June 30, 1866.

The telegraph will have already informed you of the concentration of the Italian army, whose headquarters have since Tuesday been removed from Redondesco to Piadena, the king having chosen the adjacent villa of Cigognolo for his residence. The concentrating movements of the royal army began on the morning of the 27th, i.e., three days after the bloody fait d'armes of the 24th, which, narrated and commented on in different manners according to the interests and passions of the narrators, still remains for many people a mystery. At the end of this letter you will see that I quote a short phrase with which an Austrian major, now prisoner of war, portrayed the results of the fierce struggle fought beyond the Mincio. This officer is one of the few survivors of a regiment of Austrian volunteers, uhlans, two squadrons of which he himself commanded. The declaration made by this officer was thoroughly explicit, and conveys the exact idea of the valour displayed by the Italians in that terrible fight. Those who incline to overrate the advantages obtained by the Austrians on Sunday last must not forget that if Lamarmora had thought proper to persist in holding the positions of Valeggio, Volta, and Goito, the Austrians could not have prevented him. It seems the Austrian general-in-chief shared this opinion, for, after his army had carried with terrible sacrifices the positions of Monte Vento and Custozza, it did not appear, nor indeed did the Austrians then give any signs, that they intended to adopt a more active system of warfare. It is the business of a commander to see that after a victory the fruit of it should not be lost, and for this reason the enemy is pursued and molested, and time is not left him for reorganization. Nothing of this happened after the 24th—nothing has been done by the Austrians to secure such results. The frontier which separates the two dominions is now the same as it was on the eve of the declaration of war. At Goito, at Monzambano, and in the other villages of the extreme frontier, the Italian authorities are still discharging their duties. Nothing is changed in those places, were we to except that now and then an Austrian cavalry party suddenly makes its appearance, with the only object of watching the movements of the Italian army. One of these parties, formed by four squadrons of the Wurtemberg hussar regiment, having advanced at six o'clock this morning on the right bank of the Mincio, met the fourth squadron of the Italian lancers of Foggia and were beaten back, and compelled to retire in disorder towards Goito and Rivolta. In this unequal encounter the Italian lancers distinguished themselves very much, made some Austrian hussars prisoners, and killed a few more, amongst whom was an officer. The same state of thing, prevails at Rivottella, a small village on the shores of the Lake of Garda, about four miles distant from the most advanced fortifications of Peschiera. There, as elsewhere, some Austrian parties advanced with the object of watching the movements of the Garibaldians, who occupy the hilly ground, which from Castiglione, Eseuta, and Cartel Venzago stretches to Lonato, Salo, and Desenzano, and to the mountain passes of Caffaro. In the last- named place the Garibaldians came to blows with the Austrians on the morning of the 28th, and the former got the best of the fray. Had the fait d'armes of the 24th, or the battle of Custozza, as Archduke Albrecht calls it, been a great victory for the Austrians, why should the imperial army remain in such inaction? The only conclusion we must come to is simply this, that the Austrian losses have been such as to induce the commander-in-chief of the army to act prudently on the defensive. We are now informed that the charges of cavalry which the Austrian lancers and the Hungarian hussars had to sustain near Villafranca on the 24th with the Italian horsemen of the Aorta and Alessandria regiments have been so fatal to the former that a whole division of the Kaiser cavalry must be reorganised before it can be brought into the field main.

The regiment of Haller hussars and two of volunteer uhlans were almost destroyed in that terrible charge. To give you an idea of this cavalry encounter, it is sufficient to say that Colonel Vandoni, at the head of the Aorta regiment he commands, charged fourteen times during the short period of four hours. The volunteer uhlans of the Kaiser regiment had already given up the idea of breaking through the square formed by the battalion, in the centre of which stood Prince Humbert of Savoy, when they were suddenly charged and literally cut to pieces by the Alessandria light cavalry, in spite of the long lances they carried. This weapon and the loose uniform they wear makes them resemble the Cossacks of the Don. There is one circumstance, which, if I am not mistaken, has not as yet been published by the newspapers, and it is this. There was a fight on the 25th on a place at the north of Roverbella, between the Italian regiment of Novara cavalry and a regiment of Hungarian hussars, whose name is not known. This regiment was so thoroughly routed by the Italians that it was pursued as far as Villafranca, and had two squadrons put hors de combat, whilst the Novara regiment only lost twenty-four mounted men. I think it right to mention this, for it proves that, the day after the bloody affair of the 24th, the Italian army had still a regiment of cavalry operating at Villafranca, a village which lay at a distance of fifteen kilometres from the Italian frontier. A report, which is much accredited here, explains how the Italian army did not derive the advantages it might have derived from the action of the 24th. It appears that the orders issued from the Italian headquarters during the previous night, and especially the verbal instructions given by Lamarmora and Pettiti to the staff officers of the different army corps, were either forgotten or misunderstood by those officers. Those sent to Durando, the commander of the first corps, seem to have been as follows: That he should have marched in the direction of Castelnuovo, without, however, taking part in the action. Durando, it is generally stated, had strictly adhered to the orders sent from the headquarters, but it seems that General Cerale understood them too literally. Having been ordered to march on Castelnuovo, and finding the village strongly held by the Austrians, who received his division with a tremendous fire, he at once engaged in the action instead of falling back on the reserve of the first corps and waiting new instructions. If such was really the case, it is evident that Cerale thought that the order to march which he had received implied that he was to attack and get possession of Castelnuovo, had this village, as it really was, already been occupied by the enemy. In mentioning this fact I feel bound to observe that I write it under the most complete reserve, for I should be sorry indeed to charge General Cerale with having misunderstood such an important order.

I see that one of your leading contemporaries believes that it would be impossible for the king or Lamarmora to say what result they expected from their ill-conceived and worse-executed attempt. The result they expected is, I think, clear enough; they wanted to break through the quadrilateral and make their junction with Cialdini, who was ready to cross the Po during the night of the 24th. That the attempt was ill- conceived and worse-executed, neither your contemporary nor the public at large has, for the present, the right to conclude, for no one knows as yet but imperfectly the details of the terrible fight. What is certain, however, is that General Durando, perceiving that the Cerale division was lost, did all that he could to help it. Failing in this he turned to his two aides-de-camp and coolly said to them:

'Now, gentlemen, it is time for you to retire, for I have a duty to perform which is a strictly personal one—the duty of dying.' On saying these words he galloped to the front and placed himself at about twenty paces from a battalion of Austrian sharp-shooters which were ascending the hill. In less than five minutes his horse was killed under him, and he was wounded in the right hand. I scarcely need add that his aides-de- camp did not flinch from sharing Durando's fate. They bravely followed their general, and one, the Marquis Corbetta, was wounded in the leg; the other, Count Esengrini, had his horse shot under him. I called on Durando, who is now at Milan, the day before yesterday. Though a stranger to him, he received me at once, and, speaking of the action of the 24th, he only said: 'I have the satisfaction of having done my duty. I wait tranquilly the judgement of history.'

Assuming, for argument's sake, that General Cerale misunderstood the orders he had received, and that, by precipitating his movement, he dragged into the same mistake the whole of Durando's corps—assuming, I say, this to be the right version, you can easily explain the fact that neither of the two contending parties are as yet in a position clearly to describe the action of the 24th. Why did neither the one nor the other display and bring into action the whole forces they could have had at their disposal? Why so many partial engagements at a great distance one from the other? In a word, why that want of unity, which, in my opinion, constituted the paramount characteristic of that bloody struggle? I may be greatly mistaken, but I am of opinion that neither the Italian general-in-chief nor the Austrian Archduke entertained on the night of the 23rd the idea of delivering a battle on the 24th. There, and only there, lies the whole mystery of the affair. The total want of unity of action on the part of the Italians assured to the Austrians, not the victory, but the chance of rendering impossible Lamarmora's attempt to break through the quadrilateral. This no one can deny; but, on the other hand, if the Italian army failed in attaining its object, the failure- owing to the bravery displayed both by the soldiers and by the generals- was far from being a disastrous or irreparable one. The Italians fought from three o'clock in the morning until nine in the evening like lions, showing to their enemies and to Europe that they know how to defend their country, and that they are worthy of the noble enterprise they have undertaken.

But let me now register one of the striking episodes of that memorable day. It was five o'clock p.m. when General Bixio, whose division held an elevated position not far from Villafranca, was attacked by three strong Austrian brigades, which had debouched at the same time from three different roads, supported with numerous artillery. An officer of the Austrian staff, waving a white handkerchief, was seen galloping towards the front of Bixio's position, and, once in the presence of this general, bade him surrender. Those who are not personally acquainted with Bixio cannot form an idea of the impression this bold demand must have made on him. I have been told that, on hearing the word 'surrender,' his face turned suddenly pale, then flushed like purple, and darting at the Austrian messenger, said, 'Major, if you dare to pronounce once more the word surrender in my presence, I tell you—and Bixio always keeps his word—that I will have you shot at once.' The Austrian officer had scarcely reached the general who had sent him, than Bixio, rapidly moving his division, fell with such impetuosity on the Austrian column, which were ascending the hill, that they were thrown pellmell in the valley, causing the greatest confusion amongst their reserve. Bixio himself led his men, and with his aides-de-camp, Cavaliere Filippo Fermi, Count Martini, and Colonel Malenchini, all Tuscans, actually charged the enemy. I have been told that, on hearing this episode, Garibaldi said, 'I am not at all surprised, for Bixio is the best general I have made.' Once the enemy was repulsed, Bixio was ordered to manoeuvre so as to cover the backward movement of the army, which was orderly and slowly retiring on the Mincio. Assisted by the co-operation of the heavy cavalry, commanded by General Count de Sonnaz, Bixio covered the retreat, and during the night occupied Goito, a position which he held till the evening of the 27th.