Monism as Connecting Religion and Science: A Man of Science

The History of Creation (Vol.1&2): Complete Edition

Last Words on Evolution: A Popular Retrospect and Summary

The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny. From the German of Ernst Haeckel, Volume 1

The History of Creation, Or, The Development of the Earth and Its Inhabitants by the Action of Natural Causes: A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular : from the 8. German Ed. of Ernst Haeckel, Volume 2

The History of Creation Or The Development of the Earth and Its Inhabitants by the Action of Natural Causes: A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular. From the 8. German Ed. of Ernst Haeckel ...

The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny, Volume 1

The History of Creation, Or, The Development of the Earth and Its Inhabitants by the Action of Natural Causes: A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular

The Riddle of the Universe at the Close of the Nineteenth Century

Freedom in Science and Teaching

The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny, Volume 2

The Riddle of the Universe

The History of Creation, Or, The Development of the Earth and Its Inhabitants by the Action of Natural Causes: A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular, Volume 2

The Evolution of Man: Volume 1

The Last Link: Our Present Knowledge of the Descent of Man

The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny, Volume 2

The History of Creation, Or, The Development of the Earth and Its Inhabitants by the Action of Natural Causes. A Popular Exposition of the Doctrine of Evolution in General, and of that of Darwin, Goethe, and Lamarck in Particular. From the 8th German Ed. of Ernst Haeckel. The Translation Rev. by E. Ray Lankester: Volume 2

Freedom in Science and Teaching

The Evolution of Man: A Popular Exposition of the Principal Points of Human Ontogeny and Phylogeny. From the German of Ernst Haeckel, Volume 2

The Answer ... to the Falsehoods of the Jesuits, Catholic and Protestant: From the German Pamphlet "Sandalion" and "My Church Departure" ...