Project Gutenberg was the first provider of free electronic books, or eBooks. Michael Hart, founder of Project Gutenberg, invented eBooks in 1971 and his memory continues to inspire the creation of eBooks and related technologies today.Practical Methods of Sewage Disposal for Residences, Hotels and InstitutionsAuthor: Ogden, Henry N. (Henry Neely), 1868-,Language: English, Class: TD: Technology: Environmental technology, Sanitary engineering, Release Date: Feb 26, 2017