Increase in the army of Tennessee.
--The Dalton Confederate is informed their, in the first twenty days of last month, notwithstanding the excessive severity of the weather, the net increase of Hardee's corps was about nine hundred — one thousand three hundred and fifty having returned to duty, and four hundred and fifty having left on furlough. We understand that the net increase in Hindman's corps, in the same time, was about seven hundred.