Professor Ostwald will speak on "Esperanto, an International Language," this afternoon at 5 o'clock, in the large lecture room of the Jefferson Physical Laboratory.

Esperanto is an artificial language, devised for the convenience of scientific and commercial people. A need for such a language has been felt for many years, and at the time of the Paris Exposition a committee was appointed to investigate the matter. This committee has not finished its investigation, but of the several artificial languages which it has considered. Esperanto seems the most practicable.

Professor Ostwald's lecture will be open to all members of the University.