After a brief career in the Congregational church, J. Peter Lesley (1819-1903) left the ministry in 1852 to work full-time as a geologist. Having gained experience in structural geology and stratigraphy with the First Pennsylvania Geological Survey (1836-1842), Lesley became an expert in the geology of coal, working for the Pennsylvania Railroad and other corporations and conducting some of the first systematic studies of the state's hydrocarbon resources. A long-time professor at the University of Pennsylvania, he was elected to the APS in 1856, serving variously as its librarian, secretary, and vice president, and he was selected as Director of the Second Pennsylvania Geological Survey (1875-1889). The Lesley Papers include letters to and from Peter Lesley and his wife, Susan on geology, coal and iron mining, abolition, educational reform, organized charity, and Unitarianism. The collection offers important insight into academic and applied geology in late 19th century Pennsylvania, the development of the coal and iron industries, as well as into the Lesleys' progressive social and intellectual milieu. It is divided into three series: Lesley's general correspondence, his correspondence with his brother Joseph, and microfilms of Lesley's research notes.
7.75 Linear feet
Abolition, emancipation, freedom | Americans Abroad | Avesta | Biographies. | Cartography. | Charities -- United States. | Clippings. | Conway, Moncure Daniel, 1832-1907 | Cope, E. D. (Edward Drinker), 1840-1897 | Desor, E. (Edouard), 1811-1882 | Diaries. | Education -- United States | Egypt -- Antiquities. | Egyptian language -- Writing, Hieroglyphic | Emerson, Ralph Waldo, 1803-1882 | Family Correspondence | Flint, Austin | France -- Description and travel | Funeral rites and ceremonies -- Egypt | Furness, Horace Howard, 1833-1912 | General Correspondence | Geological Survey of Pennsylvania | Geology -- Maps | Geology -- Nova Scotia -- Surveys | Geology -- Pennsylvania | Germany -- Description and travel | Gibbs, Wolcott, 1822-1908 | Hale, Lucretia P. (Lucretia Peabody), 1820-1900 | Hawaiian language | Henry, Joseph, 1797-1878 | International Travel | Javanese language | Journals (notebooks) | Lesley, Allen | Lesley, J. P. (J. Peter), 1819-1903 | Lesley, Joseph, 1831-1889 | Lesley, Susan I. (Susan Inches), 1823-1904 | Literature | Literature, Arts, and Culture | Lyman, Benjamin Smith, 1835-1920 | M'Kim, J. Miller (James Miller), 1810-1874 | Marriage and Family Life | Marsh, Othniel Charles, 1831-1899 | McKinley, Alexander | Nova Scotia -- Surveys | Obelisks | Owen, Richard, 1804-1892 | Paleontology -- Pennsylvania | Pennsylvania -- Surveys | Philology | Photographs | Poems | Scientific Data | Shaler, Nathaniel Southgate , 1841-1906 | Sketches. | Slavery -- United States. | Social conditions, social advocacy, social reform | Sumner, Charles, 1811-1874 | Switzerland -- Description and travel | Thomson, J. Edgar (James Edgar), 1808-1874 | Transcendentalism | Travel Narratives and Journals | Unitarianism | United States - History - Civil War, 1861-1865 | Whitney, J. D. (Josiah Dwight), 1819-1896 | Wright, Chauncey,1830-1875.