A. A. A. S.

The American Association for the Advancement of Science concluded its congress at Cincinnati (TIME, Dec. 31, Jan. 7).

Important events and disclosures:

Mathematician Wins. A $1,000 prize, for the most valuable contribution to science presented at the current meetings, was awarded to Dr. Leonard E. Dickson, Professor of Mathematics at the University of Chicago. His achievement was a general mathematical theory including as special cases certain fundamental branches, such as quaternions and vector analysis. It is comparable in importance to the so-called calculus of Ricci...

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