- Mariahof Cow, Styria
- Marshall Foch
- Marshall Jofre
- Meganyctiphanes norvegica, One of the Euphausiacea
- Men's Hairstyles - Classic Greece
- Mimonectes loveni. A Female Specimen seen from the Side and from Below
- Miners Descending a Shaft
- Munidopsis regia, a Deep-sea Galatheid from the Bay of Bengal
- Mysis relicta, One of the Mysidacea
- Nebalia bipes
- Negretti Merino Ram
- Neolithic or New Stone Age Man
- Nests of Social Weavers
- Nests of the Bottle bird
- Newly-hatched Young of a Crayfish
- Nicola the magician
- One of the Abdominal Somites of the Lobster, with its Appendages, separated and viewed from in Front
- Opossum
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Optical Illusion in dress
- Organ of Corti
- Otto von Bismarck
- Phronima colletti, Male. From a Specimen taken in Deep Water near the Canary Islands
- Pithecanthropos Erectus
- Plaits 1
- Plaits 2
- Podolian Cow, Galicia
- Polycheles phosphorus, One of the Eryonidea, Female, from the Indian Seas
- Prize Short-horn, 'Pride of Windsor' , shown at Islington
- Prospect of the Roman Road & Wansdike just above Calston May 20, 1724
- Præanaspides præcursor, One of the Fossil Syncarida, from the Coal-measures of Derbyshire
- Pylocheles miersii, a Symmetrical Hermit Crab
- Rambouillet-Negretti Ram
- Red Blood-Corpuscles presenting, some the Surfaces, others the Edges, of their Discs, together with Single Representatives of Four Types of Leucocyte.
- Remorse from an elephant
- Restoration of a Trilobite (Triarthrus becki), showing the Appendages
- Robert Herrick
- Robert Tristram Coffin, Poet
- Ruffs ( Machetes pugnax )
- Section of Drain
- Sections of an English Coal Mine
- Sense-Organs susceptible to Pressure
- Sheep-shearing operations in Australia
- Sheep-washing in Australia
- Siamese War Elephant
- Simon Bolivar
- Skull of Bear (Ursus), showing the dentition
- Small Breed White pig, Shown at Bedford
- Son, why hast thou thus dealt with us
- Sphygmograph
- Stages in the Life-history of Hæmocera danæ, One of the Monstrillidæ
- Thaumastocheles zaleucus