J. C. Coleman son and three daughters. J. C. Coleman John (Jack) Cristopher Coleman (died 20 April 1971) was a respected Irish geographer, archaeologist, speleologist and mountaineer. He devoted much of his life to the study of the caves of Ireland, the product of which were his many contributions to scientific journals in Ireland and the United Kingdom, his founding of the Speleological Society of Ireland and the publishing of his book, "The Caves of Ireland". His dedication to the exploration of Irish caves and highly respected articles published both nationally and abroad were pivotal in boosting the study of speleology in Ireland
European and American voyages of scientific exploration described this expedition in his "A Relation of a Voyage" (1699). By the 18th century maritime exploration had become safer and more efficient with technical innovations that vastly improved navigation and cartography: improvements were made to the theodolite, octant, precision clocks, as well as the compass, telescope, and general shipbuilding techniques. From the mid-18th century through the 19th century scientific missions mapped the newly discovered regions, brought back to Europe the newly discovered fauna and flora, made hydrological, astronomical and meteorological observations and improved the methods of navigation. This stimulated great advances in the scientific disciplines of natural history, botany,