- The 'Tse King.'
- The 'Ring with Wings.' - Assyrian Form
- The 'Minotaur'
- Ten Barrel Gatling Gun at low angle of depression for searching Ravines
- Ten Barrel Gatling gun at high elevation
- Taking it in his jaws
- Taki-goto
- Tabl Shamee
- Ta'khay, or Alligator
- Syrinx
- Swerving at intersections
- Surgical instruments of the Arabs
- Striving to reach her decks
- Stop Signal
- Steel Bow to diminish curvature of the spine
- Stearman PT-17 &18
- Staff slings, Longbows, Crossbows and Flail
- Sphygmograph
- Sopwith Military Biplane
- Some types of American and foreign aeroplanes
- Some types of American and foreign aeroplanes
- Small chambered Cannon
- Sitting Bull
- Sir Isaac Newton's House, Orange and St. Martin's Streets
- Single-seated Air Scout
- Sighting the M102 Howitzer
- Sidecar
- Siamese War Elephant
- Showing how the Tail of a Comet is directed away from the Sun
- Shop engine, 1901
- Ship saved by life line thrown from a rescue airship
- Several Observables in the six-branched Figures form'd on the surface of Urine by freezing
- Semi-rigid Airship
- Section of the Goubet Submarine Boat
- Section of First-rate Man-of-War
- Seasons
- Sea-plane to carry a crew of seven
- Scouting over the ruined region between the lines (no man’s land)
- Scouting Monoplane, with occupants below the wings.
- Scotch bagpipe, eighteenth century
- Scorpions and Spiders
- Schooner rigged Sharpie
- scheme-20
- Scarification without cupping in Egypt
- Saxon Pneumatic Organ
- Saw Tai
- Saw Ou
- Santos-Dumont’s Biplane which flew at Bagetelle
- Santos-Dumont’s Airship
- Santir
- Ryan PT-22
- Rot at Mouldering Wharves
- Room to pass
- Roller Washing Machine
- Roger Bacon's House at Oxford
- Robins’ Balistic Pendulum
- Rifle-calibre Maxim Gun
- Revolving Barrelled Matchlock
- Revenue Cutter
- Republic P43-A