- Some Reptiles of the Late Paleozoic Age
- Life in the Early Palæozoic
- Life in the Later Palæozoic Age
- Australian Lung Fish
- Bronze Age Implements
- Cro-magnon Man
- Diagram Showing the Duration of the Neolithic Period
- Diagram to Illustrate the Riddle of The Piltdown Sub-man.
- Early Pleistocene Animals, Contemporary with Earliest Man
- Early Stone Implements
- Hesperornis
- Hut Urns
- Map of Europe 50,000 Years Ago
- Miocene Mammals
- Neanderthal Man
- Neolithic Implements
- Pottery from Lake Dwellings
- Reindeer Age Articles
- Reindeer Age Engravings and Carvings
- Restoration of a Lake Dwelling
- Some Oligocene Mammals
- The Sub-Man Pithecanthropus
- Time-chart 6000 B.C. to A.D.
- A Menhir of the Neolithic Period
- A Reindeer Age Masterpiece
- Palæomastodon
- molars of elephants
- American Mastadon
- Head of the ancestral elephant
- Head of the early ancestor of elephants
- Myotragus
- Skeleton of an Extinct Flightless Toothed Bird, Hesperornis
- The walking-fish or mud-skipper (Periophthalmus)
- The Archæopteryx
- Genealogical tree of animals
- Nautilus
- A Grazing Bison, Delicately and Carefully Drawn, Engraved on a Wall of the Altamira Cave, Northern Spain
- A Mammoth Drawn on the Wall of the Font-de-Gaume Cavern
- The Skull and Brain-Case of Pithecanthropus
- Triceratops - A Huge Extinct Reptile
- Pariasaurus - An Extinct Vegetarian Triassic Reptile
- Prehistoric Whistle
- A hunter using an atlatl
- Mammoth Hunt
- Primitive Sledge
- Primitive Bread Making
- Pithecanthropos Erectus
- Eoanthropos
- Cro Magnon
- Neolithic or New Stone Age Man
- The oldest fossil fish known—discovered in the Upper Silurian strata of Scotland, and named Birkenia by Professor Traquair
- Drawing of the skull and lower jaw of the Meritherium, discovered by Dr. Andrews in the Upper Eocene of the Fayum Desert.
- The gigantic three-horned Reptile, Triceratops
- Bronze Age
- Phororhacos, a Patagonian Giant of the Miocene
- Cephalaspis and Loricaria, an Ancient and a Modern Armored Fish
- Pterichthys, the Wing Fish
- The Mastodon
- The Missourium of Koch, from a Tracing of the Figure Illustrating Koch's Description
- The Mammoth as Engraved by a Primitive Artist on a Piece of Mammoth Tusk