Sir Charles Lyell (1837). “Principles of Geology: Being an Inquiry how Far the Former Changes of the Earth's Surface are Referable to Causes Now in Operation”, p.305
Sir Charles Lyell, Gérard Paul Deshayes (1830). “Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation”, p.4
Sir Charles Lyell, Gérard Paul Deshayes (1830). “Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation”, p.255
Charles Lyell (1833). “Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface by Reference to Causes Now in Operation”, p.5
Charles Lyell (1863). “The Geological Evidences of the Antiquity of Man with Remarks on Theories of the Origin of Species by Variation by Charles Lyell”, p.506
Charles Lyell (1837). “Principles of Geology0: Being an Inquiry how Far the Former Changes of the Earth's Surface are Referable to Causes Now in Operation : In 4 Volumes”, p.134
Sir Charles Lyell, Gérard Paul Deshayes (1830). “Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation”, p.153
Charles Lyell (1863). “The Geological Evidences of the Antiquity of Man with Remarks on Theories of the Origin of Species by Variation by Charles Lyell”, p.421
Sir Charles Lyell (1845). “Travels in North America, in the Years 1841-2: With Geological Observations on the United States, Canada, and Nova Scotia”, p.15
Sir Charles Lyell, Gérard Paul Deshayes (1830). “Principles of Geology: Being an Attempt to Explain the Former Changes of the Earth's Surface, by Reference to Causes Now in Operation”, p.1
Sir Charles Lyell (1853). “Principles of geology ; or, The modern changes of the earth and its inhabitants considered as illustrative of geology”, p.696
Sir Charles Lyell (1853). “Principles of geology ; or, The modern changes of the earth and its inhabitants considered as illustrative of geology”, p.666