| Into the Sun
John L. Chapman | |
| Into the Unknown: A Romance of South Africa
Lawrence Fletcher | |
| Intra Muros
Rebecca Ruter Springer | |
| Introducing Irony: A Book of Poetic Short Stories and Poems
Maxwell Bodenheim | |
| Introducing the American Spirit
Edward Alfred Steiner | |
| Introduction of the Locomotive Safety Truck / Contributions from the Museum of History and Technology: Paper 24
John H. White | |
| Introduction to Anatomy, 1532 / With English translation and an introductory essay on anatomical studies in Tudor England by C.D. O'Malley and K.F. Russell.
David Edguard | |
| Introduction to Mathematical Philosophy
Bertrand Russell | |
| Introduction to Non-Violence
Theodore Paullin | |
| Introduction to Our Bird Friends, Volume 1
Lenwood Ballard Carson |
