It is interesting, for instance, to note the movement of foreign exchange at times when a heavy selling movement of American stocks by the foreigners is under way. Origin of security-selling on the Stock Exchange is by no means easy to trace, but there are times when the character of the brokers doing the selling and the very nature of the stocks being disposed of mean much to the experienced eye. Take, for instance, a day when half a dozen brokers usually identified with the operations of the international houses are consistently selling such stocks as Missouri, Kansas & Texas, Baltimore & Ohio, or Canadian Pacific--whether or not the inference that the selling is for foreign account is correct can very probably be read from the movement of the exchange market. If it is the case that the selling comes from abroad and that _we_ are buying, large orders for foreign exchange are almost certain to make their appearance and to give the market a very strong tone if not actually to urge it sharply upward. Such orders are not likely to be handled in a way which makes them apparent to everybody, but as a rule it is impossible to execute them without creating a condition in the exchange market apparent to every shrewd observer. And, as a matter of fact, many an operation in the international stocks is based upon judgment as to what the action of the exchange market portends. Similarly--the other way around--exchange managers very frequently operate in exchange on the strength of what they judge or know is going to happen in the market for the international stocks. With the exchange market sensitive to developments, knowledge that there is to be heavy selling in some quarter of the stock market, from abroad, is almost equivalent to knowledge of a coming sharp rise in exchange on London. Perhaps the best illustration of how exchange can be affected by foreign selling of our securities occurred just after the beginning of the panic period in October of 1907. Under continuous withdrawals of New York capital from the foreign markets, exchange had sold down to a very low point. Suddenly came the memorable selling movement of "Americans" by English and German investors. Within two or three days perhaps a million shares of American stocks were jettisoned in this market by the foreigners, while exchange rose by leaps and bounds nearly 10 cents to the pound, to the unheard-of price of 4.91. Nobody had exchange to sell and almost overnight there had been created a demand for tens of millions of dollars' worth.