We have a letter before us from an Intelligent, educated citizen of this State, a non-commissioned officer in one of our late Maine Regiments, from which we make the following extracts:

“We have been put through a pretty hard breaking-in process. Our march through Maryland was a fatiguing one, and the exposure (sleeping in the open air) was a rough ordeal to those of hitherto sedentary life especially. I stood it better than I expected, carrying my musket every day that the regiment moved, though many stout men gave out, who, I thought, could stand much more than I.”

The writer was afflicted with the prevailing army diseases,—diarrhoea, dysentery, and bloody flux,—and was obliged to report him self on the sick list. He was on the doctor’s hands about a week, and says of his treatment—