The fact that industrial monopolies arrest development is more serious even than the direct burden imposed through extortionate prices. But the most harm-bearing incident of the trusts is their promotion of financial concentration. Industrial trusts feed the money trust. Practically every trust created has destroyed the financial independence of some communities and of many properties; for it has centered the financing of a large part of whole lines of business in New York, and this usually with one of a few banking houses. This is well illustrated by the Steel Trust, which is a trust of trusts; that is, the Steel Trust combines in one huge holding company the trusts previously formed in the different branches of the steel business. Thus the Tube Trust combined 17 tube mills, located in 16 different cities, scattered over 5 states and owned by 13 different companies. The wire trust combined 19 mills; the sheet steel trust 26; the bridge and structural trust 27; and the tin plate trust 36; all scattered similarly over many states. Finally these and other companies were formed into the United States Steel Corporation, combining 228 companies in all, located in 127 cities and towns, scattered over 18 states. Before the combinations were effected, nearly every one of these companies was owned largely by those who managed it, and had been financed, to a large extent, in the place, or in the state, in which it was located. When the Steel Trust was formed all these concerns came under one management. Thereafter, the financing of each of these 228 corporations (and some which were later acquired) had to be done through or with the consent of J. P. Morgan & Co. _That was the greatest step in financial concentration ever taken._ STOCK EXCHANGE INCIDENTS