- Leg of a Horse Compared with that of the Giant Moa
- Skull of Phororhacos Compared with that of the Race-horse Lexington
- Bronze Age Implements
- Some Oligocene Mammals
- Neolithic Implements
- The Horned Ceratosaurus, a Carnivorous Dinosaur
- Diagram to Illustrate the Riddle of The Piltdown Sub-man.
- The Mammoth as Engraved by a Primitive Artist on a Piece of Mammoth Tusk
- Skeleton of the Modern Horse and of His Eocene Ancestor
- Skeleton of the Mammoth in the Royal Museum of St. Petersburg
- Skull of Ceratosaurus
- Young Hoactzins
- The Three Giants, Phororhacos, Moa, Ostrich
- Time-chart 6000 B.C. to A.D.
- The Development of the Horse
- A Hind Leg of the Great Brontosaurus, the Largest of the Dinosaurs
- A Single Vertebra of Brontosaurus
- Tooth of Mastodon and of Mammoth
- Head of the early ancestor of elephants
- Koch's Hydrarchus. Composed of Portions of the Skeletons of Several Zeuglodons
- Early Pleistocene Animals, Contemporary with Earliest Man
- Head of the ancestral elephant
- Skeleton of Triceratops
- Cro-magnon Man
- Archæopteryx
- Map of Europe 50,000 Years Ago
- Thespesius, a Common Herbivorous Dinosaur of the Cretaceous
- Some Late Mesozoic Reptiles
- Life in the Early Palæozoic
- The Track of a Three-toed Dinosaur
- The gigantic three-horned Reptile, Triceratops
- Hesperornis, the Great Toothed Diver
- Hesperornis
- The Missourium of Koch, from a Tracing of the Figure Illustrating Koch's Description
- Drawing of the skull and lower jaw of the Meritherium, discovered by Dr. Andrews in the Upper Eocene of the Fayum Desert.
- Some Reptiles of the Late Paleozoic Age
- Australian Lung Fish
- Pariasaurus - An Extinct Vegetarian Triassic Reptile
- Life in the Later Palæozoic Age
- Pterodactyls
- The Mastodon
- Skeleton of a Radiolarian Very Greatly Enlarged
- Triceratops - A Huge Extinct Reptile
- A Great Sea Lizard Tylosaurus Dyspelo
- Pottery from Lake Dwellings
- Genealogical tree of animals
- A Mammoth Drawn on the Wall of the Font-de-Gaume Cavern
- Reindeer Age Engravings and Carvings
- American Mastadon
- Reindeer Age Articles
- Nature's Four Methods of Making a Wing - Bat, Pteryodactyl, Archæopteryx, and Modern Bird
- A Tooth of Zeuglodon, One of the 'Yoke Teeth,' from which it derives the name
- Hut Urns
- Where a Dinosaur Sat Down
- Early Stone Implements
- Hind Feet of Dinosaurs
- A Menhir of the Neolithic Period
- Primitive Bread Making
- Outline Restorations of Dinosaurs
- Phororhacos, a Patagonian Giant of the Miocene