While the general death-rate and especially the death-rate from communicable diseases has been reduced, the rate from non-communicable diseases due primarily to personal habits, overwork, etc., has been largely increased. In proof of this, the following facts are cited: The death-rate for consumptives in the registration area in the United States has decreased 49 per cent. since 1880, while the death-rate from diseases of the kidneys has increased 131 per cent. in the same time. The death-rate from heart disease has increased 57 per cent., from apoplexy 84 per cent., and from all three 83 per cent. At the same time, the death-rate from heart, apoplexy and blood-vessel diseases in England and Wales has decreased 7 per cent. Particularly illuminating is the table showing the death-rate for different ages by decades from 1880 to 1907, that of Massachusetts and that of England and Wales being contrasted. Between the ages of twenty and thirty, the death-rate in Massachusetts has decreased 41 per cent., while between the ages of twenty-five and thirty-five it has decreased in England and Wales 34 per cent. Between the ages of thirty and forty, the death-rate in Massachusetts has decreased 15 per cent. and in England and Wales 25 per cent., but between the ages of forty and fifty the death-rate in Massachusetts has increased 35 per cent., while in England and Wales the rate from forty-five to fifty-five has decreased 11 per cent., making a total difference of forty-six lives per hundred between the ages of forty and fifty-five, the most valuable years of a man's life, in which England and Wales have gained while Massachusetts has lost. Mr. Rittenhouse concludes that this abnormal increase in the death-rate from non-communicable diseases is due to the early wearing out of vital organs due to excesses in eating, drinking, working and playing—in short, intemperate living and the strenuous life. He says: “The science of sanitation and disease prevention has steadily advanced and yet the death-rate from these degenerative maladies has increased by leaps and bounds. The fact that the mortality in the younger lives is decreasing is very gratifying, but it offers no excuse for ignoring the extraordinary increase in mortality in middle life and old age. We try to protect a man from a disease which another might give him, but, without the slightest help, permit him to die of a disease which he may unknowingly give himself.”