The age of mammals in Europe, Asia and North America /

gan Osborn, Henry Fairfield, 1857-1935
Cyhoeddwyd 1910

The age of the earth and other geological studies /

gan Sollas, W. J. (William Johnson), 1849-1936
Cyhoeddwyd 1905

Alaska.

Cyhoeddwyd 1901

The anatomy of the common mussels (Mytilus latus, edulis and magellanicus).

gan Purdie, Alex
Cyhoeddwyd 1887

The autobiography of Nathaniel Southgate Shaler :

gan Shaler, Nathaniel Southgate, 1841-1906
Cyhoeddwyd 1909

A catalogue of British fossils : comprising all the genera and species hitherto described ; with references to their geological distribution and to the localities in which they hav...

gan Morris, John, 1810-1886
Cyhoeddwyd 1843

Catalogue of the Echinodermata of New Zealand, with diagnoses of the species /

gan Hutton, Frederick Wollaston, 1836-1905
Cyhoeddwyd 1872

Catalogue of the land Mollusca of New Zealand : with descriptions of the species /

Cyhoeddwyd 1873

Catalogue of the marine Mollusca of New Zealand : with diagnoses of the species /

gan Hutton, Frederick Wollaston, 1836-1905
Cyhoeddwyd 1873

Characteristics of volcanoes : with contributions of facts and principles from the Hawaiian Islands /

gan Dana, James Dwight, 1813-1895
Cyhoeddwyd 1890

Charles Darwin as geologist : the Rede lecture given at the Darwin centennial commemoration on 24 June 1909 /

gan Geikie, Archibald, 1835-1924
Cyhoeddwyd 1909

Class-book of geology /

gan Geikie, Archibald, 1835-1924
Cyhoeddwyd 1902

Climate and time in their geological relations : a theory of secular changes of the earth's climate /

gan Croll, James, 1821-1890
Cyhoeddwyd 1890

Climatic accidents in landscape-making : a sequel to Landscape as developed by the processes of normal erosion /

gan Cotton, C. A. (Charles Andrew), 1885-1970
Cyhoeddwyd 1942

Considerations on volcanos; the probable causes of their phenomena, the laws which determine their march, the disposition of their products and their connexion with the present sta...

gan Scrope, George Poulett, 1797-1876
Cyhoeddwyd 1825

Cope: master naturalist : the life and letters of Edward Drinker Cope with a bibliography of his writings classified by subject. A study of the pioneer and foundation periods of ve...

gan Osborn, Henry Fairfield, 1857-1935
Cyhoeddwyd 1931

Coral reefs, Volcanic islands, South American geology /

gan Darwin, Charles, 1809-1882
Cyhoeddwyd 1910

Detailed catalogue and guide to the geological exhibits /

Cyhoeddwyd 1886

Directory of New Zealand scientists /

Cyhoeddwyd 1948

The discovery of dinornis : the story of a man, a bone, and a bird /

gan Buick, Thomas Lindsay, 1866-1938
Cyhoeddwyd 1936