The preference, however, to be given to old charities rather than to new ones is subject to very many exceptions. It does not apply to new countries or to the many cases in which changes and developments of industry have planted vast agglomerations of population in districts which were once but thinly populated, and therefore but little provided with charitable or educational institutions. Nor does it apply to the many cases in which the circumstances of modern life have called into existence new forms of charity, new wants, new dangers and evils to be combated, new departments of knowledge to be cultivated. One of the greatest difficulties of the older universities is that of providing, out of their shrinking endowments, for the teaching of branches of science and knowledge which have only come into existence, or at least into prominence, long after these universities were established, and some of which require not only trained teachers but costly apparatus and laboratories. Increasing international competition and enlarged scientific knowledge have rendered necessary an amount of technical and agricultural education never dreamed of by our ancestors; and the rise of the great provincial towns and the greater intensity of provincial life and provincial patriotism, as well as the changes that have passed over the position both of the working and middle classes, have created a genuine demand for educational establishments of a different type from the older universities. The higher education of women is essentially a nineteenth-century work, and it has been carried on without the assistance of old endowments and with very little help from modern Parliaments. In the distribution of public funds a class which is wholly unrepresented in Parliament seldom gets its fair share; and higher education, like most forms of science, like most of the higher forms of literature, and like many valuable forms of research, never can be self-supporting. There are great branches of knowledge which without established endowments must remain uncultivated, or be cultivated only by men of considerable private means. Some invaluable curative agencies, such as convalescent homes in different countries and climates and for different diseases, have grown up in our own generation, as well as some of the most fruitful forms of medical research and some of the most efficacious methods of giving healthy change and brightness to the lives that are most monotonous and overstrained. Every great revolution in industry, in population, and even in knowledge, brings with it new and special wants, and there are cases in which assisted emigration is one of the best forms of charity.