- Xenopsylla cheopis, male
- Two common centipedes
- Travelling workshop for the repair of military aeroplanes
- The yellow fever mosquito (Aëdes calopus)
- The Voisin Biplane - top view
- The Voisin Biplane
- The Vickers
- The single-seated 'air-car'—a suggested type
- The seven-cylinder 50-h.p. Gnome motor.
- The Roe Triplane
- The Italian tarantula
- The hull of a Flying-Boat
- The Farman Biplane - top view
- The Farman Biplane
- The Curtiss Biplane making a turn
- The Curtiss Biplane in flight
- The Curtiss Biplane front view
- The Curtiss Biplane
- The Cody Biplane from above
- The Cody Biplane
- The cattle tick (Boophilus annulatus). (a) Female; (b) male
- The car of a modern Balloon
- The Bleriot Monoplane - top view
- The Bleriot Monoplane
- The Antoinette Monoplane - top view
- The Antoinette Monoplane
- Sting of a honey bee
- Sopwith Military Biplane
- Some early medical entomology
- Single-seated Air Scout
- Simulium venustum
- Sepsis violacea; puparium and adult
- Semi-rigid Airship
- Section through a venom gland of Latrodectus 13-guttatus showing the peritoneal, muscular and epithelial layers
- Sea-plane to carry a crew of seven
- Scouting Monoplane, with occupants below the wings.
- Sarcoptes scabiei. Diagrammatic representation of the course in the skin of man
- Sarcoptes scabiei, male
- Sarcoptes scabiei, female
- Santos-Dumont’s Airship
- Salivary glands of Notonecta maculata
- Reduvius (Opsicœtus) personatus
- Rasahus biguttatus
- Poison apparatus of a honey bee
- Piophila casei
- Pediculus showing the blind sac (b) containing the mouth parts (a) beneath the alimentary canal (p)
- Pediculoides ventricosus, female
- Otiobius (Ornithodoros) megnini, male. (a) dorsal, (b) ventral aspect
- Otiobius (Ornithodoros) megnini, head of nymph
- Notœdres cati, male and female
- Muscina stabulan
- Multiple-engined craft
- Mosquito
- Mosquito
- Maurice Farman Biplane
- Mandible of Scolopendra cingulata showing venom gland
- Lucilia cæsar
- Looping the loop
- Linguatula. (a) larva; (enlarged). (b) adult; (natural size)
- Life cycle of the malarial parasite