in March to 9.09 per cent.

of mean strength, sick and well, in August.

The ratio of mortality continued to increase during September, for notwithstanding the removal of one-half of the entire number of prisoners during the early portion of the month, one thousand seven hundred and sixty-seven (1,767) deaths are registered from September 1 to 21, and the largest number of deaths upon any one day occurred during this month, on the 16th, viz.

one hundred and nineteen.
The entire number of Federal prisoners confined at Andersonville was about forty thousand six hundred and eleven; and during the period of near seven months, from February 24 to September 21, nine thousand four hundred and seventy-nine (9,479) deaths were recorded; that is, during this period near one-fourth, or more, exactly one in 4.2, or 13.3 per cent., terminated fatally.

This increase of mortality was due in great measure to the accumulation of the sources of disease, as the increase of excrements and filth of all kinds, and the concentration of noxious effluvia, and also to the progressive effects of salt diet, crowding, and the hot climate.
CONCLUSIONS.
1st.