He found little tendency to senile dementia and many of even the very aged had their mental faculties intact and took a keen interest in passing events, possessed clear judgment, and were full of thought for the present and future welfare of others. “It is no less satisfactory to find that the active, even severe and long-continued intellectual activity of the matured brain seems in no way to impair its enduring qualities, and that good, earnest, useful employment of the body and mind are not only compatible with but even conducive to longevity.” Of 157 of the males who replied, only six had ever had diseases of the prostate or bladder, so that in general he thinks that “the aged body does not seem to be, on the whole, prone to disease.” Few of his returns indicate the presence of any special malady. “We know that even cancers, when they attack old people, often make slow progress in them and sometimes fail to make way at all, remaining stationary or even withering, and the susceptibility to contagious disease appears to decrease from infancy to old age. Quite as remarkable is the fact that recovery from wounds, fractures, or operations, seems to be quite as rapid, and sometimes more so than in middle age. Indeed, wounds in the old heal very quickly provided they do not slough, indicating two opposite tendencies.” He also finds evidence of greater vital energy in parts nearest to those diseased provided they are able to live at all, as if nature had recuperative processes of stimulating parts adjacent to lesions. He chronicled few more surprising results than the infrequency of sclerosis. * * * * * Sir James Crichton-Browne’s long article[145] is a classic and is based on very comprehensive statistical and other studies. He tells physicians that it should be their great aim to grow old themselves and to be the cause of old age in others. The marked increase in the duration of life in recent decades has been almost entirely confined to its early stages. After 45 the decline in the death rate has been insignificant; and after 65, as we have elsewhere seen, it has actually increased. Thus the proportion of men ripened by experience has in fact declined. What carries off the old? Not fever, smallpox, or phthisis chiefly, as was once the case, but the following in order of frequency: cancer, heart diseases, nervous troubles, and kidney complaints, and these are all degenerative diseases due not so much to intemperance as to the new strains of modern life, which are less felt in the country and less by women.