- A Grazing Bison, Delicately and Carefully Drawn, Engraved on a Wall of the Altamira Cave, Northern Spain
- A Great Sea Lizard Tylosaurus Dyspelo
- A Hind Leg of the Great Brontosaurus, the Largest of the Dinosaurs
- A hunter using an atlatl
- A Mammoth Drawn on the Wall of the Font-de-Gaume Cavern
- A Menhir of the Neolithic Period
- A Reindeer Age Masterpiece
- A Single Vertebra of Brontosaurus
- A Tooth of Zeuglodon, One of the 'Yoke Teeth,' from which it derives the name
- American Mastadon
- Archæopteryx
- Australian Lung Fish
- Bronze Age
- Bronze Age Implements
- Cephalaspis and Loricaria, an Ancient and a Modern Armored Fish
- Cro Magnon
- Cro-magnon Man
- Diagram Showing the Duration of the Neolithic Period
- Diagram to Illustrate the Riddle of The Piltdown Sub-man.
- Drawing of the skull and lower jaw of the Meritherium, discovered by Dr. Andrews in the Upper Eocene of the Fayum Desert.
- Early Pleistocene Animals, Contemporary with Earliest Man
- Early Stone Implements
- Eoanthropos
- Genealogical tree of animals
- Head of the ancestral elephant
- Head of the early ancestor of elephants
- Hesperornis
- Hesperornis, the Great Toothed Diver
- Hind Feet of Dinosaurs
- Hut Urns
- Koch's Hydrarchus. Composed of Portions of the Skeletons of Several Zeuglodons
- Leg of a Horse Compared with that of the Giant Moa
- Life in the Early Palæozoic
- Life in the Later Palæozoic Age
- Mammoth Hunt
- Map of Europe 50,000 Years Ago
- Miocene Mammals
- molars of elephants
- Myotragus
- Nature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern Bird
- Nautilus
- Neanderthal Man
- Neolithic Implements
- Neolithic or New Stone Age Man
- Outline Restorations of Dinosaurs
- Outline sketch restoration of Triceratops
- Palæomastodon
- Pariasaurus - An Extinct Vegetarian Triassic Reptile
- Phororhacos, a Patagonian Giant of the Miocene
- Pithecanthropos Erectus
- Pottery from Lake Dwellings
- Prehistoric Whistle
- Primitive Bread Making
- Primitive Sledge
- Pterichthys, the Wing Fish
- Pterodactyls
- Reindeer Age Articles
- Reindeer Age Engravings and Carvings
- Restoration of a Lake Dwelling
- Skeleton of a Radiolarian Very Greatly Enlarged