During the past few years in the United States, as a result of the development of the many inventions for the production of "moving pictures," a new kind of cheap, popular theater has become common. Usually the charge of admission is five cents, whence the name "Nickelodeon"; the entertainment consists usually of a number of more or less dramatic incidents portrayed by means of the pictures, and a few songs, generally illustrated by pictures, and sung to the accompaniment of a mechanical piano. In almost every town in the United States these cheap pictorial theaters have appeared and their number will, doubtless, considerably swell the total of business establishments. In the small towns of the State of New York, the writer made an investigation and found that there were frequently several such places in the same town; that they were practically all built by the same persons, started by them, and then leased to others. These were generally people with small savings who, in the course of a few weeks, lost all their money and retired, their places being taken by other victims of the speculators. What seemed to the casual observer an admirable and conspicuous example of an increase in petty business, proved, upon closer study, to be a very striking example of concentration, disguised for purposes of speculation. Thus reduced, the increase of small industries and retail establishments affects the contention that there is a general tendency to concentration very little. It does perhaps seriously weaken, or even destroy, some extreme statements of the theory, contending that the process of monopolization must be a direct, simple process of continuous absorption and elimination, leaving each year fewer small units than before. Small stores do exist; they have not been put out of existence by the big department stores as was at one time confidently predicted. They serve a real social need by supplying the minor commodities of everyday use in small quantities, just as the petty industries serve a real social need. Many of them are conducted by married women to supplement the earnings of their husbands, or by widows; others by men unable to work, whose income from them is less than the wages of artisans. Together, these probably constitute a majority of the small retail establishments which show any tendency to increase.[99]