MARCARIA, July 3, Evening.

Murray's guide will save me the trouble of telling you what this little
and dirty hole of Marcaria is like. The river Oglio runs due south, not
far from the village, and cuts the road which from Bozzolo leads to
Mantua. It is about seven miles from Castellucchio, a town which, since
the peace of Villafranca, marked the Italian frontier in Lower Lombardy.
Towards this last-named place marched this morning the eleventh division
of the Italians under the command of General Angioletti, only a month ago
Minister of the Marine in Lamarmora's Cabinet. Angioletti's division of
the second corps was, in the case of an attack, to be supported by the
fourth and eighth, which had crossed the Oglio at Gazzuolo four hours
before the eleventh had started from the place from which I am now
writing. Two other divisions also moved in an oblique line from the
upper course of the above-mentioned river, crossed it on a pontoon
bridge, and were directed to maintain their communications with
Angioletti's on the left, whilst the eighth and fourth would have formed
its right. These five divisions were the avant garde of the main body of
the Italian army. I am not in a position to tell you the exact line the
army thus advancing from the Oglio has followed, but I have been told
that, in order to avoid the possibility of repeating the errors which
occurred in the action of the 24th, the three corps d'armee have been
directed to march in such a manner as to enable them to present a compact
mass should they meet the enemy. Contrary to all expectations,
Angioletti's division was allowed to enter and occupy Castellucchio
without firing a shot. As its vanguard reached the hamlet of Ospedaletto
it was informed that the Austrians had left Castellucchio during the
night, leaving a few hussars, who, in their turn, retired on Mantua as
soon as they saw the cavalry Angioletti had sent to reconnoitre both the
country and the borough of Castellucchio.