All Items 2 Collection 1 Archives & Special Collections 2 Contributor 5 Hitchcock, Edward, 1793-1864 2 Association of American Geologists and Naturalists 1 Hall, James, 1811-1898 1 Lyell, Charles, Sir, 1797-1875 1 Murchison, Roderick Impey, Sir, 1792-1871 1 Location 1 United States 2 Topic 8 Drift 2 Career in geology 1 Congresses 1 Correspondence 1 Geologists 1 Geology 1 Glaciology 1 Knowledge 1 show more 3 show fewer Part Of 1 Edward and Orra White Hitchcock Papers 2 Genre 3 Correspondence 1 Extracts 1 Proceedings 1 Subject 11 Drift 2 Association of American Geologists and Naturalists 1 Geologists – United States – 19th century – Correspondence 1 Geology – United States – Congresses 1 Glaciology 1 Hall, James, 1811-1898 – Career in geology 1 Hitchcock, Edward, 1793-1864 – Correspondence 1 Hitchcock, Edward, 1793-1864 – Knowledge – Geology 1 Lyell, Charles, Sir, 1797-1875 – Career in geology 1 Murchison, Roderick Impey, Sir, 1792-1871 – Correspondence 1 The American journal of science and arts 1 show more 6 show fewer Abstract of the proceedings of the fourth session of the Association of American Geologists and Naturalists, extract Association of American Geologists and Naturalists Two pages from "Abstract of the proceedings of the fourth session of the Association of American Geologists and Naturalists" extracted from volume 45, number 2 of the American Journal of Science and Arts, published in 1843. The extract describes a debate between Edward Hitchcock, Joseph Nicollete, William C. Redfield, and Henry Darwin Rogers regarding Louis Agassiz's glacial theory. Hitchcock notes that he is almost afraid to say anything more on the subject due to much misunderstanding of his previous reports on it, but states that he believes the phenomena of drift is the result of ice and water, though he is uncertain which is a greater force or what causes such action of ice and water. Abstract of the proceedings of the fourth session of the Association of American Geologists and Naturalists, extract Edward Hitchcock letter to Sir Roderick Impey Murchison, 1842 September 5 Hitchcock, Edward, 1793-1864 A letter to Sir Roderick Impey Murchison in which Edward Hitchcock discusses the theory of glacial drift. Hitchcock apologizes for misrepresenting Murchison's thoughts on the subject and also clarifies his own views. Additionally, Hitchcock mentions the contributions of Sir Charles Lyell and James Hall to glacial theory. According to the finding aid, this letter appears to be a manuscript copy and is not written in Edward Hitchcock's hand. Edward Hitchcock letter to Sir Roderick Impey Murchison, 1842 September 5