One should consider most attentively the waters which the inhabitants use, whether they be marshy and soft, or hard and running from elevated and rocky situations, and then if satisfy and unfit for cooking: and the ground, whether it be naked and deficient in water, or wooded and well watered, and whether it lies in a hollow, confined situation, or is elevated and cold; and the made in which the inhabitants live, and what are their pursuits, whether they are fond of drinking and eating to excess, and given to indolence, or fond of exercise and labor.