Charles Babbage (1830). “Reflections on the Decline of Science in England: And on Some of Its Causes, by Charles Babbage (1830). To which is Added On the Alleged Decline of Science in England, by a Foreigner (Gerard Moll) with a Foreword by Michael Faraday (1831).”, p.13
Charles Babbage (1830). “Reflections on the Decline of Science in England: And on Some of Its Causes, by Charles Babbage (1830). To which is Added On the Alleged Decline of Science in England, by a Foreigner (Gerard Moll) with a Foreword by Michael Faraday (1831).”, p.17
Charles Babbage, Philip Morrison, Emily Morrison (1961). “Charles Babbage on the Principles and Development of the Calculator: And Other Seminal Writings”, p.69, Courier Corporation
Charles Babbage, Philip Morrison, Emily Morrison (1961). “Charles Babbage on the Principles and Development of the Calculator: And Other Seminal Writings”, p.322, Courier Corporation