The comparative ages of the dead will indicate to him not only the amount of health, but the comparative force of various species of disease; and from the character of its diseases, and the amount of its health, much of the moral state of a people may be safely pronounced upon. The proportion of marriages to births and deaths is always an indication of the degree of comfort enjoyed, and of the consequent purity of morals; and, therefore, of the degree in which education is present or needed. A large number of children, and a large proportion of marriages, indicate physical and moral welfare, and therefore a comparative prevalence of education. A large number of births, and a small proportion of marriages, indicate the reverse. When these circumstances are taken in connexion with the prevailing occupations of the district to which they relate, the philanthropist has arrived at a sufficient certainty as to the means of education required, and the method in which they are to be applied. There is, unfortunately, in all countries, an insufficiency of records framed for the purpose of induction, and subsequent practical use. The chief of a tribe, proud in proportion to his barbarian insignificance, may from time to time indulge himself by numbering the people whom he considers as his property; and an ambitious and warlike emperor may organize a conscription; and these records may remain to fulfil hereafter far more exalted purposes than those for which they were designed: but these instances are few; and in the art of constructing tables, and ascertaining averages, the most civilized people are still, for want of practice, in a state of unskilfulness. But, in the absence of that which would spare observers the task of ascertaining results for themselves, they must take the best they can get. A traveller must inquire for any public registers which may exist in all districts, and note and reflect upon the facts he finds there. In case of there being none such, it is possible that the physicians of the district may be able to afford information from private documents of the same nature. If not, there remain the cemeteries.