of the deaths are from tuberculosis.

In Bavarian monasteries, fifty per cent.

of those who enter in good health die of consumption, and in the Prussian prisons it is almost the same.

The effect of bad air, filth, and bad food is shown by the fact that the death-rate among these classes, between the ages of twenty and forty, is five times that of the general population of the same age.

In New York City, over one-fifth of all the deaths of persons over twenty are from this cause.