Address delivered at the thirtieth anniversary of the International Federation for the Abolition of State Regulation of Vice at Neuchatel, september 27th, 1905 /The inevitable victory of justice : two presidential addresses delivered at congresses of the International Federation for the Abolition of State Regulation of Prostitution, 1904 and 1905 /Facts versus panic : being a reply to certain alarmist statements and proposals recently made /Presidential address delivered at the Dresden congress, september 22nd, 1904 /