Page:Popular Science Monthly Volume 82.djvu/618

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PSM V82 D618 Joseph Henry.png

treated with admirable clearness wide reaching theories to which the writers had in large measure contributed both the facts and the deductions. Dr. Hale's address will be printed in The Popular Science Monthly. The other addresses have been or will be printed in Science.

Dr. Theodor II. Boveri, of the University of Würzburg, was to have spoken on "The Material Basis of Heredity," but was unable (o be present owing to ill health. Otherwise the program would have represented education and the sciences of conduct, the organization of science, and the exact and biological sciences, with two addresses from home and three addresses from abroad. The fact that three out of the four addresses were given by men working in astronomy and geophysics represents a real popular interest, though perhaps a survival from a more superstitious period, when the