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POPULAR SCIENCE MONTHLY.
invitation stimulated them to undertake the task. Such work is too easily postponed. And thus the congress may I hope to create in these hundreds of addresses a connected and consistent work which no chance group of individuals would have produced, which demanded a unified program and the enthusiasm of the
leading thinkers of the world. But we hope that still more important than the set addresses will be the living influence of this gathering, in which the four or five hundred invited official speakers and chairmen, together with the thousand who may make shorter communications, will form merely the