Here is presented the final eleven chapters of Henry Coulter's book 'The West of Ireland: Its Existing Condition and Prospects', first published in 1862. They relate to Counties Sligo, Donegal, Leitrim and Roscommon. The book offers local historians and genealogists access for the first time to the specific sections of this important historic source related to the North West of Ireland. Coulter reports on poor harvests, the prospect of impending famine and the state of agriculture and trade. He gives an account of Belleek Porcelain, the Creevilia Ironworks and other development, while reporting on the decline of the landlord and Rundale systems and the emergence of tenants' rights. It is bound to interest those researching the history of the North West of Ireland and those with ancestral roots in the area. This edition has been enhanced by the inclusion of an index and extensive footnotes not found in the original or in other scanned editions of the book.