 Complete the following phrase:  Having retired temporarily from business in 1894, he gave up his time almost entirely to stamps, became a member of the Societe Philatelique Francaise, and was most regular in his attendance at its meetings. In 1898 he was elected President of the Societe Francaise de Timbrologie. From 1898 to 1900 he was also editor of the Revue Philatelique Francaise. In February, 1898, he brought forward a scheme for an International Philatelic Exhibition, to be held simultaneously with the 