IV.-ON THE CONDITIONS OF A UNIVERSAL LANGUAGE, IN REFERENCE TO THE INVITATION OF THE AMERICAN PHILOSOPHICAL SOCIETY OF PHILADELPHIA, U.S., TO SEND DELEGATES TO A CONGRESS FOR PERFECT- ING A UNIVERSAL LANGUAGE ON AN ARYAN BABIS, AND ITS REPORT ON VOLAPUK

1890 Transactions of the Philological Society  
doi:10.1111/j.1467-968x.1990.tb01234.x fatcat:aatpsqy4q5ce7jnx2rmtivetay