Enlarging on my desire for active service with troops, and urging the
utter lack of such opportunity where I was, I pleaded my cause until
General Halleck finally resolved to take the responsibility of
letting me go without consulting the War Department. When I had
thanked him for the kindness, he said that inasmuch as I was to leave
him, he would inform me that the regiment to which I had just been
appointed was ordered out as part of a column directed to make a raid
to the south of the enemy, then occupying Corinth, and that if I
could turn over my property, it would probably be well for me to join
my command immediately, so that I could go with the expedition. I
returned to my tent, where Alger and Walbridge were still waiting,
and told them of the success of my interview, at the same time
notifying them that I would join the regiment in season to accompany
the expedition of which Halleck had spoken.

In the course of the afternoon I turned over all my property to my
successor, and about 8 o'clock that evening made my appearance at the
camp of the Second Michigan Cavalry, near Farmington, Mississippi.
The regiment was in a hubbub of excitement making preparations for
the raid, and I had barely time to meet the officers of my command,
and no opportunity at all to see the men, when the trumpet sounded to
horse. Dressed in a coat and trousers of a captain of infantry, but
recast as a colonel of cavalry by a pair of well-worn eagles that
General Granger had kindly given me, I hurriedly placed on my saddle
a haversack, containing some coffee, sugar, bacon, and hard bread,
which had been prepared, and mounting my horse, I reported my
regiment to the brigade commander as ready for duty.