| On The Affinities of Leptarctus primus of Leidy / American Museum of Natural History, Vol. VI, Article VIII, pp. 229-331.
Jacob Lawson Wortman | |
| On the Age of Maya Ruins
Charles P. Bowditch | |
| On the Antiquity of the Chemical Art
James Mactear | |
| On the Anzac trail: Being extracts from the diary of a New Zealand sapper
Anzac | |
| On the apostolical succession / Parochial lectures, second series
William J. Irons | |
| On the Architectural History of Chester Cathedral
Thomas Rickman | |
| On The Art of Reading
Arthur Quiller-Couch | |
| On the Art of Writing / Lectures delivered in the University of Cambridge 1913-1914
Arthur Quiller-Couch | |
| On the art of writing fiction
Unknown | |
| On the Banks of the Amazon
William Henry Giles Kingston |
