Man is as subject to the organic laws as the inanimate bodies about him are to mechanical and chemical laws, and we as little escape the consequences of the neglect or violation of these natural laws, which affect the organic life, through the air we breathe, the food we eat, the water we drink, the clothes we wear, and the circumstances surrounding our habitation, as the stone projected from the hand, or the shot from the mouth of the cannon can escape the bounds of gravitation. What we need is the gospel of the physical health to be preached from every pulpit, and in every school room and in every home. All strong motives of religion and the eternal world are taught from the pulpit and the Sunday school to enforce certain duties that are no more important to the well-being of man than the laws of health, which are so widely disregarded. These laws are God's laws as truly as any inscribed by Him on the Table of Stones. The boards of health of our cities prescribe rules and regulations to insure the peace and happiness of the individual and the longevity of life which must apply to all in order that they might live out the expected term of life. What is the natural term of life? Physiologists have fixed it at a hundred years. Florens at five times the time required to perfectly develop the skeleton. David says: "The days of man's life are three score years and ten; and if by reason of strength they be four score years, yet indeed is his strength labor and sorrow." Under modern hygienic rules and regulations the days of man have been increased in civilized countries. Carefully prepared statistics show that while the maximum age has not increased in many centuries, the number of persons who survive infancy and reap a ripe old age is greatly increased. According to the Secretary of the Chamber of Commerce of New York City, civilization largely interferes with the laws of evolution, by survivorship and by encouraging the waste which arises from it. We know that a human being soundly constituted continues in good health until he reaps a ripe old age, provided certain conditions are observed and no injurious accident befall him. We might learn a lesson from the early Jews, or the ancient Greeks or Romans, if we had at our command statistics of their mortality. Doubtless they had a small death-rate! For they were strong and vigorous and observed the laws of hygiene. When these laws are properly observed, they decrease mortality and bring about greater health, comfort and happiness to the individual and to the country at large. Those who would preserve health in themselves and in the community in which they live, who would reap the greatest benefits of earth, and live out the appointed time, must strictly conform to these essentials: 1. A constant supply of pure air. 2. Cleanliness of person and surroundings. 3. Sufficient nourishing food properly prepared and properly taken. 4. Sufficient exercise of the various organs of the body.