Evolution of Humankind
Album
Art Forms in Nature, Kunstformen der Natur, Liepzig, Germany, 1904. #3
Album
What the Iguanodon was like
Album
Characteristics of the caudipteryx
Album
Dilophosaurus A dangerous predator
Album
What the Argentinosaurus was like
Album
What the pachycephalosaurus was like
Album
Tyrannosaurus rex #1
Album
Ordovician Period #1
Album
Art Forms in Nature, Kunstformen der Natur, Liepzig, Germany, 1904. #10
Album
Characteristics of the Liopleurodon
Album
Origin of the Earth
Album
First herbivorous giant
Album