1. The balance of classes (1867); 2. Democracy in Switzerland (1890); 3. Ought the referendum to be introduced into England? (1890); 4. The defence of the union (1892); 5. The referendum (1894); 6. Will the form of parliamentary government be permanent? (1899); 7. The referendum and its critics (1910); 8. The Parliament Act, 1911, and the destruction of all constitutional safeguards (1912); 9. Development during the last thirty years of new constitutional ideas (extract from the introduction to the eighth edition of introduction to the study of the law of the constitution, 1915).