Títulos
- Icarus or the future of science
- The idea of progress
- L'idée de rythme
- Ilha dos Amores
- L'Iliade
- The Iliad of Homer
- Illustrations of positivism
- Imagem
- An image of Shakespeare
- Images
- O impossível regresso
- An inaugural lecture
- The Incredulity of Father Brown
- As indifferenças do século
- La indigencia espiritual del sexo femenino
- La inferioridad mental de la mujer
- L'influence de la religion dans l'art
- L'influence de St François d'Assise sur la civilisation et les arts
- Influencias de la literatura gallega en la castellana
- Information wanted and other sketches
- Inimigos
- Initiation à la mécanique
- Initiation aux théories d'Einstein
- Inquérito literário
- An inquiry into the nature and causes of the wealth of nations
- In re Shakespeare beeching v. Greenwood
- The insanity of genius and the general inequality of human faculty, physiologically considered
- Instituições elementares de Rhetorica para uso das escholas
- La integridad de la Patria
- A intelligencia na litteratura nacional
- The international jew
- O interregno (Fernando Pessoa) [3-90LMR]
- O interregno (Núcleo de Acção Nacional) [3-86]
- An introduction to Mark Masonry
- An introduction to mathematics
- An introduction to Royal Arch Masonry
- Introduction to the literature of Europe in the fifteenth, sixteenth and seventeenth centuries
- An introduction to the philosophy of Herbert Spencer
- An introduction to the study of the kabalah
- A invasão dos judeus
- A invenção do dia claro
- O Inverno
- An investigation of the trinity of Plato and of Philo Judaeus and of the effects which an...
- Invisible helpers
- The invisible man (by H. G. Wells) [8-569]
- The invisible man (H. G. Wells) [8-570]
- Isis
- Is it Shakespeare?
- Islám
- Ivanhoe