Art, from having been a very rare luxury among our forefathers even as lately as the beginning of this century, has become an adjunct, it may even be said a necessity, of our civilization. Drawing is being taught in our schools, and is regarded as one of the polite accomplishments of educated young ladies. Art galleries have sprung up everywhere, and art stores are popular resorts in our larger cities. Art societies thrive and flourish in many States, and art teachers are in demand in most of our towns. Colonies of artists swarm in stately buildings in New York, Boston, and Philadelphia. The time has come when no artist of merit need starve for want of patronage. Thousands of Americans, travelling abroad every year, spend the larger portion of their time in Europe in visiting those splendid art galleries which the munificence and taste of kings and nobles have established, and which are free to all the world. The taste for art has become universal, and has penetrated all classes; few are the American houses, in these days, wherein the evidences of this taste are not apparent. [Sidenote: Music.] Music has progressed with the other arts in popularity and culture; though America, like England, has as yet produced no really great composer. Every branch of music, however, is cultivated with us; and music as a profession is even more certainly lucrative than painting. America welcomes the most renowned singers and musicians in the world, and the highest efforts of musical composition are performed here to audiences sufficiently cultivated fully to enjoy and appreciate them. We cannot doubt that the future will still further develop the American love of all the arts; or that, in time, this continent will rival that of Europe in great artistic productions. XVIII. PROGRESS IN SCIENCE AND INVENTION. [Sidenote: The Patent Office.] The progress in practical science and invention, in this country and the civilized world, has been so amazingly rapid during the present century, that the merest hint of a few of the most important elements of that progress can alone be given. The fertility of the human intellect, in devising quicker and more exact methods of doing those things which contribute to the wealth and the pleasure of man, has accomplished results so vast and so varied since the Declaration of Independence, that the mind cannot survey the smallest portion of this field without bewilderment and wonder. If we should visit the Patent Office at Washington, and give ourselves up to a scrutiny of its records, its tabulated results, and its long rows of cases of models, we should in time gain some idea of the extent to which American minds have carried the effort of invention. [Sidenote: Discoveries in the Exact Sciences.]